diff --git a/.github/workflows/deploy-site.yml b/.github/workflows/deploy-site.yml
index 2de7602..af356a7 100644
--- a/.github/workflows/deploy-site.yml
+++ b/.github/workflows/deploy-site.yml
@@ -24,15 +24,11 @@ jobs:
           key: cargo-test-${{ hashFiles('Cargo.lock') }}
           restore-keys: cargo-test-
 
-      # toolpath-desktop is a Tauri 2 app that pulls in glib-sys /
-       # webkit2gtk-sys on Linux, which need GTK system libs we don't
-       # install here. The crate targets macOS primarily; its own tests
-       # run on dev machines where Tauri's deps are already present.
       - name: Test
-        run: cargo test --workspace --exclude toolpath-desktop
+        run: cargo test --workspace
 
       - name: Clippy
-        run: cargo clippy --workspace --exclude toolpath-desktop -- -D warnings
+        run: cargo clippy --workspace -- -D warnings
 
   deploy:
     needs: test
diff --git a/.github/workflows/release-desktop.yml b/.github/workflows/release-desktop.yml
deleted file mode 100644
index cdf556d..0000000
--- a/.github/workflows/release-desktop.yml
+++ /dev/null
@@ -1,74 +0,0 @@
-name: Release Desktop App
-
-on:
-  release:
-    types: [created]
-  workflow_dispatch:
-    inputs:
-      release_tag:
-        description: "Existing release tag to attach artifacts to"
-        required: true
-
-jobs:
-  build:
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - platform: macos-latest
-            args: "--target aarch64-apple-darwin"
-          - platform: macos-latest
-            args: "--target x86_64-apple-darwin"
-          - platform: ubuntu-22.04
-            args: ""
-          - platform: windows-latest
-            args: ""
-
-    runs-on: ${{ matrix.platform }}
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Install Linux dependencies
-        if: matrix.platform == 'ubuntu-22.04'
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y \
-            libwebkit2gtk-4.1-dev \
-            libayatana-appindicator3-dev \
-            librsvg2-dev \
-            patchelf \
-            libssl-dev \
-            build-essential \
-            curl \
-            wget \
-            file
-
-      - name: Install Rust stable
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          targets: ${{ matrix.platform == 'macos-latest' && 'aarch64-apple-darwin,x86_64-apple-darwin' || '' }}
-
-      - name: Rust cache
-        uses: swatinem/rust-cache@v2
-        with:
-          workspaces: "./ -> target"
-
-      - name: Setup Bun
-        uses: oven-sh/setup-bun@v2
-        with:
-          bun-version: latest
-
-      - name: Install frontend dependencies
-        working-directory: crates/toolpath-desktop/frontend
-        run: bun install
-
-      - name: Build and upload Tauri app
-        uses: tauri-apps/tauri-action@v0
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          projectPath: crates/toolpath-desktop
-          tagName: ${{ github.event.inputs.release_tag || github.event.release.tag_name }}
-          releaseName: ${{ github.event.inputs.release_tag || github.event.release.tag_name }}
-          releaseId: ${{ github.event.release.id }}
-          args: ${{ matrix.args }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef88355..4804c31 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to the Toolpath workspace are documented here.
 
 ## [Unreleased]
 
+### Removed
+
+- `toolpath-desktop` moved out of the workspace. The Tauri 2 desktop GUI now lives in the private [pathbase](https://github.com/empathic/pathbase) repo as `pathbase-app`. The toolpath derive/render crates remain open-source and are consumed by `pathbase-app` via git/crates.io deps.
+
 ### Changed
 
 - `toolpath-convo` 0.7.0: **breaking** — `file_write_diff` gains a `before_state: Option<&str>` parameter. For the `Write { content }` shape, callers can now supply the prior file contents (e.g. resolved from `git show HEAD:<path>`) so the resulting diff shows `-` lines for replaced content instead of an addition-only hunk. `None` preserves the old behaviour (diff against `""`). `Edit` / `MultiEdit` shapes are unaffected — they carry their own `old_string`. `toolpath-claude`'s Claude-JSONL deriver wires a best-effort git-HEAD lookup for `Write` tool invocations; falls back silently to additions-only when the project isn't a git repo, the file isn't tracked, or `git` isn't on `PATH`. (#35)
@@ -19,7 +23,6 @@ All notable changes to the Toolpath workspace are documented here.
 - `toolpath-opencode` 0.1.0: new crate — reads opencode's `~/.local/share/opencode/opencode.db` SQLite database (opened read-only via `rusqlite` with `SQLITE_OPEN_READ_ONLY` so it never interferes with a live opencode process), implements `ConversationProvider`, and derives Toolpath `Path` documents. Strongly types all 12 `part.data` variants (text, reasoning, tool, step-start/-finish, snapshot, patch, file, agent, subtask, retry, compaction) with `#[serde(other)]` catch-alls so new upstream variants round-trip. Each message becomes a step with tool invocations attached; reasoning folds onto `Turn.thinking`. Real unified diffs come from opencode's sibling bare git snapshot repositories via `git2` tree↔tree comparisons, honoring both the current `snapshot/<project-id>/<sha1(worktree)>/` layout and the older `snapshot/<project-id>/` flat layout. Files under `.gitignore`d paths (which opencode never captures in its snapshot store) fall back to tool-input-derived structural changes with `source: "tool_input_gitignored"` labeling. Project id is the SHA of the repo's first root commit (stable across clones and renames). 43 unit + 1 doc test.
 - `toolpath-cli` 0.4.0: adds `gen_synthetic_path` binary for generating synthetic `Path` fixtures at configurable step counts (bench support for toolpath-desktop Preview, see issue #41).
 - `toolpath-cli` 0.3.1: `path project claude` and `path incept` commands for projecting toolpath documents into Claude sessions; `derive gemini`/`list gemini`, `derive codex`/`list codex`, and `derive opencode [--session ID] [--all] [--project ID] [--no-snapshot-diffs]` / `list opencode [--project ID] [--json]` subcommands.
-- `toolpath-desktop` 0.1.0: new crate — Tauri 2 desktop app for non-technical users. Source discovery for Claude Code + Pi + local git + GitHub PRs; interactive DAG preview (d3 + dagre-d3, Svelte 5 + TypeScript frontend); local `.path.json` export; stubbed Pathbase upload. GitHub PAT stored in the OS keychain under `dev.pathbase.toolpath-desktop`. Hot-reloading dev loop via `cargo tauri dev` (spawns Vite on port 1420).
 
 ## 0.3.0 — toolpath-cli
 
diff --git a/CLAUDE.md b/CLAUDE.md
index 1d2544b..db08c9d 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -23,7 +23,6 @@ crates/
   toolpath-dot/                 # Graphviz DOT rendering
   toolpath-md/                  # Markdown rendering for LLM consumption
   toolpath-cli/                 # unified CLI (binary: path)
-  toolpath-desktop/             # Tauri 2 GUI (binary: toolpath-desktop)
 schema/toolpath.schema.json     # JSON Schema for the format
 examples/*.json                 # 12 example documents (step, path, graph)
 RFC.md                          # full format specification
@@ -45,12 +44,11 @@ toolpath-cli (binary: path)
  ├── toolpath-pi      → toolpath, toolpath-convo
  ├── toolpath-dot     → toolpath
  └── toolpath-md      → toolpath
-
-toolpath-desktop (binary: toolpath-desktop, Tauri 2 app)
- ├── toolpath, toolpath-claude, toolpath-git, toolpath-github
 ```
 
-Cross-dependencies between satellite crates: `toolpath-claude → toolpath-convo`, `toolpath-gemini → toolpath-convo`, `toolpath-codex → toolpath-convo`, `toolpath-opencode → toolpath-convo`, `toolpath-pi → toolpath-convo`. `toolpath-desktop` is a leaf — nothing depends on it.
+Cross-dependencies between satellite crates: `toolpath-claude → toolpath-convo`, `toolpath-gemini → toolpath-convo`, `toolpath-codex → toolpath-convo`, `toolpath-opencode → toolpath-convo`, `toolpath-pi → toolpath-convo`.
+
+The desktop GUI lives in the private [pathbase](https://github.com/empathic/pathbase) repo as `pathbase-app` — it consumes the toolpath crates via git or crates.io.
 
 ## Build and test
 
@@ -124,7 +122,6 @@ Tests live alongside the code (`#[cfg(test)] mod tests`), plus `toolpath-cli` ha
 - `toolpath-pi`: ~88 unit tests (types, paths, error, reader, io, provider)
 - `toolpath-dot`: 30 unit + 2 doc tests (render, visual conventions, escaping)
 - `toolpath-cli`: 126 unit + 24 integration tests (all commands, track sessions, merge, validate, roundtrip, render-md snapshots)
-- `toolpath-desktop`: 17 unit tests (IPC command modules — source listing, derive validation, export round-trip, upload stub, keychain input checks; tray activity-window bucketing, stats-snapshot smoke, session-id/basename helpers)
 
 Validate example documents: `for f in examples/*.json; do cargo run -p toolpath-cli -- validate --input "$f"; done`
 
@@ -133,38 +130,9 @@ Validate example documents: `for f in examples/*.json; do cargo run -p toolpath-
 - `toolpath-claude` has a `watcher` feature (default: on) gating `notify`/`tokio` dependencies for filesystem watching
 - `toolpath-gemini` has a `watcher` feature (default: on) gating the polling-based `ConversationWatcher` module
 
-## toolpath-desktop
-
-Tauri 2 app. Rust backend links `toolpath`, `toolpath-claude`, `toolpath-git`, `toolpath-github` directly (no CLI subprocess). Frontend is Svelte 5 + TypeScript + Vite, in the Elm-architecture (TEA) shape.
-
-Layout:
-- `crates/toolpath-desktop/src/` — Rust backend (Tauri IPC commands).
-- `crates/toolpath-desktop/frontend/` — Svelte app (bundled by Vite; managed with `bun`).
-  - `src/lib/types.ts` — `Model`, `Msg`, `Cmd`, IPC payload types (mirror Rust serde).
-  - `src/lib/update.ts` — pure `update(msg, model) -> [model, cmd]` reducer + `initialModel()`.
-  - `src/lib/store.svelte.ts` — reactive Svelte 5 store wrapping `update`, runs `Cmd`s (invoke / batch / emitMsg / fn).
-  - `src/lib/ipc.ts` — typed `invoke()` + `listen()` wrappers around `@tauri-apps/api`.
-  - `src/lib/viz.ts` — dagre-d3 DAG renderer.
-  - `src/routes/*.svelte` — one component per route, pure views over `store.m`.
-  - `src/app.svelte` — top-level switch on `store.m.route`.
-
-Tauri dev loop: `cargo tauri dev` spawns `bun --cwd frontend run dev` (Vite on `http://localhost:1420`), then runs the Rust binary against that URL. Frontend edits hot-reload via Vite HMR without restarting Rust; Rust edits trigger `cargo run` to restart. Production: `cargo tauri build` runs `bun --cwd frontend run build` first, bundling to `frontend/dist/`.
-
-Menu-bar mode: the app runs as a normal GUI app (Dock icon + app-switcher entry) *and* installs a tray icon — the tray is an accessory, not a replacement for the main window. Accessory activation policy was tried and reverted because macOS tiling window managers (yabai, Amethyst) stop managing accessory windows. A tray icon is installed in `src/tray.rs`; a background thread polls every 30s across `toolpath-claude`, `-gemini`, `-codex`, `-opencode`, and `-pi`, classifies sessions as *active* (last activity in the last 2 min) or *recent* (last 24h), updates the tray title (`● N`), and emits a `tray:stats` event. The popover is a second Tauri window (`label = "popover"`, undecorated, hidden by default) with its own Vite entry (`frontend/popover.html` → `src/popover.ts` → `routes/Popover.svelte`); left-clicking the tray toggles it via `tauri-plugin-positioner`. For an on-demand snapshot (no waiting for the next poll) the popover invokes the `tray_stats_now` IPC command.
-
-Opening a trace from the popover: clicking a recent-session row invokes `tray_open_trace { provider, project, session_id }`. The Rust side calls back into the existing `derive_claude` / `derive_pi` commands, shows the main window, and emits a `trace:opened` event to the main window with the derived `{ doc, source, filename }`. `app.svelte` listens for it and dispatches `DeriveSucceeded`, which routes to the preview. Only `claude` and `pi` have derive commands today — rows for `gemini`, `codex`, `opencode` still appear in the list (so users can see activity) but are rendered disabled.
-
-Pre-derive cache: after each 30s poll the tray kicks off background derives for every recent claude/pi session and stashes the result in `src/cache.rs`'s `TraceCache` (shared via `app.manage(Arc<TraceCache>)`). Both the popover's `tray_open_trace` and the main-window's `derive_claude` / `derive_pi` commands route through the same cache (via `derive_claude_impl` / `derive_pi_impl` in `commands/derive.rs`), so clicking a session — whether from Quick View or the Browse view's "Select →" button — usually resolves instantly. Cache freshness keys on the source's `last_activity`; when a session gets new turns its cached entry is replaced on the next poll. Cacheable calls are limited to single-session, `include_thinking=false` derives (the shape the poller prewarms). Warm-up runs with at most 2 concurrent threads.
-
-Two tiers: (1) memory, a `HashMap` capped at 32 entries; (2) disk, under `<temp_dir>/toolpath-desktop/trace-cache/<fnv1a64-of-key>.json`, so caches survive app restarts (macOS/Linux eventually clean `/tmp` themselves). Disk is capped at 200 entries, pruned oldest-first by mtime at startup. Memory misses fall through to disk and promote the hit back into memory. Corrupt files are silently deleted on read so a bad write doesn't poison the cache forever.
-
-Perf tracer (`frontend/src/lib/perf.svelte.ts`, `PerfOverlay.svelte`): the store, Preview, and the `trace:opened` listener call `perfStart` / `perfMark` / `perfEnd` at each checkpoint of a click → derive → render flow (dispatch, invoke-start, invoke-end, model-updated, preview-mounted, viz-rendered). Every completed trace logs a summary to the devtools console; set `localStorage.perf = "1"` and reload to also show a phase-bar overlay in the bottom-right. Use this to tell whether perceived click latency is the Rust derive vs. the Svelte/dagre render.
-
-Streaming pattern (Claude project/session lists): Rust command spawns a thread that emits `claude:project`, `claude:session`, `claude:projects-done`, `claude:sessions-done` events. The Svelte component subscribes with `$effect(() => { listen(...) ... return unlisten; })` — Svelte tears down listeners automatically when the effect's deps change or the component unmounts.
-
-Package manager for the frontend is `bun` (installed at `~/.bun/bin/bun`). `bun install` to set up, `bun run check` for `svelte-check`, `bun run build` for a production Vite build. Never commit `node_modules/` or `dist/` — both are ignored.
+## Desktop app
 
-Dev: `cargo tauri dev` from the crate directory. Build: `cargo tauri build`. GitHub PAT is stored in the OS keychain under service `dev.pathbase.toolpath-desktop`. Pathbase upload is a stub as of 0.1.0 — it validates the payload and returns a mock URL.
+The Tauri 2 desktop GUI lives in the private [pathbase](https://github.com/empathic/pathbase) repo as `pathbase-app`. It consumes `toolpath`, `toolpath-claude`, `toolpath-git`, `toolpath-github`, `toolpath-gemini`, `toolpath-codex`, `toolpath-opencode`, and `toolpath-pi` via git/crates.io deps. Don't look for it in this workspace — it was moved out when Pathbase went closed-source.
 
 ## Versioning and release checklist
 
diff --git a/Cargo.lock b/Cargo.lock
index f83843b..db32301 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,12 +2,6 @@
 # It is not intended for manual editing.
 version = 4
 
-[[package]]
-name = "adler2"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"
-
 [[package]]
 name = "ahash"
 version = "0.8.12"
@@ -29,21 +23,6 @@ dependencies = [
  "memchr",
 ]
 
-[[package]]
-name = "alloc-no-stdlib"
-version = "2.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc7bb162ec39d46ab1ca8c77bf72e890535becd1751bb45f64c597edb4c8c6b3"
-
-[[package]]
-name = "alloc-stdlib"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94fb8275041c72129eb51b7d0322c29b8387a0386127718b096429201a5d6ece"
-dependencies = [
- "alloc-no-stdlib",
-]
-
 [[package]]
 name = "android_system_properties"
 version = "0.1.5"
@@ -124,160 +103,6 @@ dependencies = [
  "wait-timeout",
 ]
 
-[[package]]
-name = "async-broadcast"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "435a87a52755b8f27fcf321ac4f04b2802e337c8c4872923137471ec39c37532"
-dependencies = [
- "event-listener",
- "event-listener-strategy",
- "futures-core",
- "pin-project-lite",
-]
-
-[[package]]
-name = "async-channel"
-version = "2.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "924ed96dd52d1b75e9c1a3e6275715fd320f5f9439fb5a4a11fa51f4221158d2"
-dependencies = [
- "concurrent-queue",
- "event-listener-strategy",
- "futures-core",
- "pin-project-lite",
-]
-
-[[package]]
-name = "async-executor"
-version = "1.14.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c96bf972d85afc50bf5ab8fe2d54d1586b4e0b46c97c50a0c9e71e2f7bcd812a"
-dependencies = [
- "async-task",
- "concurrent-queue",
- "fastrand",
- "futures-lite",
- "pin-project-lite",
- "slab",
-]
-
-[[package]]
-name = "async-io"
-version = "2.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "456b8a8feb6f42d237746d4b3e9a178494627745c3c56c6ea55d92ba50d026fc"
-dependencies = [
- "autocfg",
- "cfg-if",
- "concurrent-queue",
- "futures-io",
- "futures-lite",
- "parking",
- "polling",
- "rustix",
- "slab",
- "windows-sys 0.61.2",
-]
-
-[[package]]
-name = "async-lock"
-version = "3.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "290f7f2596bd5b78a9fec8088ccd89180d7f9f55b94b0576823bbbdc72ee8311"
-dependencies = [
- "event-listener",
- "event-listener-strategy",
- "pin-project-lite",
-]
-
-[[package]]
-name = "async-process"
-version = "2.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc50921ec0055cdd8a16de48773bfeec5c972598674347252c0399676be7da75"
-dependencies = [
- "async-channel",
- "async-io",
- "async-lock",
- "async-signal",
- "async-task",
- "blocking",
- "cfg-if",
- "event-listener",
- "futures-lite",
- "rustix",
-]
-
-[[package]]
-name = "async-recursion"
-version = "1.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b43422f69d8ff38f95f1b2bb76517c91589a924d1559a0e935d7c8ce0274c11"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.115",
-]
-
-[[package]]
-name = "async-signal"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52b5aaafa020cf5053a01f2a60e8ff5dccf550f0f77ec54a4e47285ac2bab485"
-dependencies = [
- "async-io",
- "async-lock",
- "atomic-waker",
- "cfg-if",
- "futures-core",
- "futures-io",
- "rustix",
- "signal-hook-registry",
- "slab",
- "windows-sys 0.61.2",
-]
-
-[[package]]
-name = "async-task"
-version = "4.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b75356056920673b02621b35afd0f7dda9306d03c79a30f5c56c44cf256e3de"
-
-[[package]]
-name = "async-trait"
-version = "0.1.89"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9035ad2d096bed7955a320ee7e2230574d28fd3c3a0f186cbea1ff3c7eed5dbb"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.115",
-]
-
-[[package]]
-name = "atk"
-version = "0.18.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "241b621213072e993be4f6f3a9e4b45f65b7e6faad43001be957184b7bb1824b"
-dependencies = [
- "atk-sys",
- "glib",
- "libc",
-]
-
-[[package]]
-name = "atk-sys"
-version = "0.18.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5e48b684b0ca77d2bbadeef17424c2ea3c897d44d566a1617e7e8f30614d086"
-dependencies = [
- "glib-sys",
- "gobject-sys",
- "libc",
- "system-deps",
-]
-
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -290,33 +115,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
-[[package]]
-name = "base64"
-version = "0.21.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
-
 [[package]]
 name = "base64"
 version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
-[[package]]
-name = "bit-set"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08807e080ed7f9d5433fa9b275196cfc35414f66a0c79d864dc51a0d825231a3"
-dependencies = [
- "bit-vec",
-]
-
-[[package]]
-name = "bit-vec"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e764a1d40d510daf35e07be9eb06e75770908c27d411ee6c92109c9840eaaf7"
-
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -328,9 +132,6 @@ name = "bitflags"
 version = "2.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "812e12b5285cc515a9c72a5c1d3b6d46a19dac5acfef5265968c166106e31dd3"
-dependencies = [
- "serde_core",
-]
 
 [[package]]
 name = "block-buffer"
@@ -341,49 +142,6 @@ dependencies = [
  "generic-array",
 ]
 
-[[package]]
-name = "block2"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdeb9d870516001442e364c5220d3574d2da8dc765554b4a617230d33fa58ef5"
-dependencies = [
- "objc2",
-]
-
-[[package]]
-name = "blocking"
-version = "1.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "serde_core",
- "typeid",
-]
-
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@@ -1085,27 +358,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-
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-dependencies = [
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- "pin-project-lite",
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-
 [[package]]
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@@ -1124,25 +376,6 @@ version = "2.3.0"
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 checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
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-
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-dependencies = [
- "memoffset",
- "rustc_version",
-]
-
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@@ -1160,16 +393,6 @@ version = "0.1.9"
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- "crc32fast",
- "miniz_oxide",
-]
-
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@@ -1191,40 +414,13 @@ version = "0.1.5"
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-
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-]
-
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-
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-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.115",
+ "foreign-types-shared",
 ]
 
 [[package]]
@@ -1233,12 +429,6 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
-[[package]]
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-
 [[package]]
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@@ -1257,16 +447,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "mac",
- "new_debug_unreachable",
-]
-
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@@ -1283,47 +463,12 @@ version = "0.3.32"
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 checksum = "7e3450815272ef58cec6d564423f6e755e25379b217b0bc688e295ba24df6b1d"
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "futures-util",
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-
 [[package]]
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-[[package]]
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-
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- "quote",
- "syn 2.0.115",
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-
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@@ -1344,7 +489,6 @@ checksum = "389ca41296e6190b48053de0321d02a77f32f8a5d2461dd38762c0593805c6d6"
 dependencies = [
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  "futures-io",
- "futures-macro",
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  "memchr",
@@ -1352,114 +496,6 @@ dependencies = [
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 ]
 
-[[package]]
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-
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- "system-deps",
-]
-
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-dependencies = [
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- "glib",
- "libc",
- "x11",
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-
-[[package]]
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- "glib-sys",
- "libc",
- "system-deps",
- "x11",
-]
-
 [[package]]
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@@ -1470,17 +506,6 @@ dependencies = [
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 ]
 
-[[package]]
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- "libc",
- "wasi 0.9.0+wasi-snapshot-preview1",
-]
-
 [[package]]
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@@ -1489,7 +514,7 @@ checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
 dependencies = [
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  "libc",
- "wasi 0.11.1+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
@@ -1517,38 +542,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "gio-sys",
- "glib",
- "libc",
- "once_cell",
- "pin-project-lite",
- "smallvec",
- "thiserror 1.0.69",
-]
-
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- "gobject-sys",
- "libc",
- "system-deps",
- "winapi",
-]
-
 [[package]]
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@@ -1564,122 +557,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "gio-sys",
- "glib-macros",
- "glib-sys",
- "gobject-sys",
- "libc",
- "memchr",
- "once_cell",
- "smallvec",
- "thiserror 1.0.69",
-]
-
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-
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-
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- "gio",
- "glib",
- "gtk-sys",
- "gtk3-macros",
- "libc",
- "pango",
- "pkg-config",
-]
-
-[[package]]
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- "gdk-sys",
- "gio-sys",
- "glib-sys",
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- "libc",
- "pango-sys",
- "system-deps",
-]
-
-[[package]]
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-dependencies = [
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- "proc-macro2",
- "quote",
- "syn 2.0.115",
-]
-
 [[package]]
 name = "h2"
 version = "0.4.13"
@@ -1692,19 +569,13 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "http",
- "indexmap 2.13.0",
+ "indexmap",
  "slab",
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  "tracing",
 ]
 
-[[package]]
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-
 [[package]]
 name = "hashbrown"
 version = "0.14.5"
@@ -1720,7 +591,7 @@ version = "0.15.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
 dependencies = [
- "foldhash 0.1.5",
+ "foldhash",
 ]
 
 [[package]]
@@ -1738,52 +609,12 @@ dependencies = [
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 ]
 
-[[package]]
-name = "heck"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-
 [[package]]
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 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
-[[package]]
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-
-[[package]]
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-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
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-]
-
-[[package]]
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-dependencies = [
- "log",
- "markup5ever 0.38.0",
-]
-
 [[package]]
 name = "http"
 version = "1.4.0"
@@ -1883,7 +714,7 @@ version = "0.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96547c2556ec9d12fb1578c4eaf448b04993e7fb79cbaad930a656880a6bdfa0"
 dependencies = [
- "base64 0.22.1",
+ "base64",
  "bytes",
  "futures-channel",
  "futures-util",
@@ -1914,7 +745,7 @@ dependencies = [
  "js-sys",
  "log",
  "wasm-bindgen",
- "windows-core 0.62.2",
+ "windows-core",
 ]
 
 [[package]]
@@ -1926,16 +757,6 @@ dependencies = [
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 ]
 
-[[package]]
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-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "byteorder",
- "png",
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-
 [[package]]
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@@ -2023,12 +844,6 @@ version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"
 
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-
 [[package]]
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@@ -2050,17 +865,6 @@ dependencies = [
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 ]
 
-[[package]]
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- "serde",
-]
-
 [[package]]
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@@ -2073,15 +877,6 @@ dependencies = [
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 ]
 
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-dependencies = [
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-]
-
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@@ -2139,25 +934,6 @@ dependencies = [
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 ]
 
-[[package]]
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-
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-dependencies = [
- "is-docker",
- "once_cell",
-]
-
 [[package]]
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@@ -2171,143 +947,33 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
 
 [[package]]
-name = "javascriptcore-rs"
-version = "1.1.2"
+name = "jobserver"
+version = "0.1.34"
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-checksum = "ca5671e9ffce8ffba57afc24070e906da7fc4b1ba66f2cabebf61bf2ea257fcc"
+checksum = "9afb3de4395d6b3e67a780b6de64b51c978ecf11cb9a462c66be7d4ca9039d33"
 dependencies = [
- "bitflags 1.3.2",
- "glib",
- "javascriptcore-rs-sys",
+ "getrandom 0.3.4",
+ "libc",
 ]
 
 [[package]]
-name = "javascriptcore-rs-sys"
-version = "1.1.1"
+name = "js-sys"
+version = "0.3.85"
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-checksum = "af1be78d14ffa4b75b66df31840478fef72b51f8c2465d4ca7c194da9f7a5124"
+checksum = "8c942ebf8e95485ca0d52d97da7c5a2c387d0e7f0ba4c35e93bfcaee045955b3"
 dependencies = [
- "glib-sys",
- "gobject-sys",
- "libc",
- "system-deps",
+ "once_cell",
+ "wasm-bindgen",
 ]
 
 [[package]]
-name = "jni"
-version = "0.21.1"
+name = "kqueue"
+version = "1.1.1"
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-checksum = "1a87aa2bb7d2af34197c04845522473242e1aa17c12f4935d5856491a7fb8c97"
+checksum = "eac30106d7dce88daf4a3fcb4879ea939476d5074a9b7ddd0fb97fa4bed5596a"
 dependencies = [
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- "cfg-if",
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-
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- "serde",
- "unicode-segmentation",
-]
-
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-checksum = "eebcc3aff044e5944a8fbaf69eb277d11986064cba30c468730e8b9909fb551c"
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- "zeroize",
-]
-
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-checksum = "eac30106d7dce88daf4a3fcb4879ea939476d5074a9b7ddd0fb97fa4bed5596a"
-dependencies = [
- "kqueue-sys",
- "libc",
+ "kqueue-sys",
+ "libc",
 ]
 
 [[package]]
@@ -2320,48 +986,12 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "kuchikiki"
-version = "0.8.8-speedreader"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "indexmap 2.13.0",
- "selectors 0.24.0",
-]
-
 [[package]]
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-dependencies = [
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- "gtk",
- "gtk-sys",
- "libappindicator-sys",
- "log",
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-
-[[package]]
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-dependencies = [
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- "libloading",
- "once_cell",
-]
-
 [[package]]
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 version = "0.2.181"
@@ -2382,16 +1012,6 @@ dependencies = [
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 ]
 
-[[package]]
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-version = "0.7.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f"
-dependencies = [
- "cfg-if",
- "winapi",
-]
-
 [[package]]
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@@ -2467,85 +1087,18 @@ version = "0.4.29"
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-[[package]]
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-checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
-
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "phf_codegen 0.11.3",
- "string_cache 0.8.9",
- "string_cache_codegen 0.5.4",
- "tendril 0.4.3",
-]
-
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-dependencies = [
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- "tendril 0.5.0",
- "web_atoms",
-]
-
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-dependencies = [
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-
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-
 [[package]]
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-[[package]]
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-dependencies = [
- "autocfg",
-]
-
 [[package]]
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-[[package]]
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-dependencies = [
- "adler2",
- "simd-adler32",
-]
-
 [[package]]
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@@ -2554,31 +1107,10 @@ checksum = "a69bcab0ad47271a0234d9422b131806bf3968021e5dc9328caf2d4cd58557fc"
 dependencies = [
  "libc",
  "log",
- "wasi 0.11.1+wasi-snapshot-preview1",
+ "wasi",
  "windows-sys 0.61.2",
 ]
 
-[[package]]
-name = "muda"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "dpi",
- "gtk",
- "keyboard-types",
- "objc2",
- "objc2-app-kit",
- "objc2-core-foundation",
- "objc2-foundation",
- "once_cell",
- "png",
- "serde",
- "thiserror 2.0.18",
- "windows-sys 0.60.2",
-]
-
 [[package]]
 name = "native-tls"
 version = "0.2.18"
@@ -2596,48 +1128,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "jni-sys 0.3.1",
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- "num_enum",
- "raw-window-handle",
- "thiserror 1.0.69",
-]
-
-[[package]]
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-checksum = "27b02d87554356db9e9a873add8782d4ea6e3e58ea071a9adb9a2e8ddb884a8b"
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee6cda3051665f1fb8d9e08fc35c96d5a244fb1be711a03b71118828afc9a873"
-dependencies = [
- "jni-sys 0.3.1",
-]
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
-
-[[package]]
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-checksum = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
-
 [[package]]
 name = "normalize-line-endings"
 version = "0.3.0"
@@ -2672,12 +1162,6 @@ dependencies = [
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 ]
 
-[[package]]
-name = "num-conv"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6673768db2d862beb9b39a78fdcb1a69439615d5794a1be50caa9bc92c81967"
-
 [[package]]
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@@ -2688,2093 +1172,642 @@ dependencies = [
 ]
 
 [[package]]
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-version = "0.7.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d0bca838442ec211fa11de3a8b0e0e8f3a4522575b5c4c06ed722e005036f26"
-dependencies = [
- "num_enum_derive",
- "rustversion",
-]
-
-[[package]]
-name = "num_enum_derive"
-version = "0.7.6"
+name = "once_cell"
+version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
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- "proc-macro2",
- "quote",
- "syn 2.0.115",
-]
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
-name = "objc2"
-version = "0.6.4"
+name = "once_cell_polyfill"
+version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "objc2-encode",
- "objc2-exception-helper",
-]
+checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
 [[package]]
-name = "objc2-app-kit"
-version = "0.3.2"
+name = "openssl"
+version = "0.10.75"
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-checksum = "d49e936b501e5c5bf01fda3a9452ff86dc3ea98ad5f283e1455153142d97518c"
+checksum = "08838db121398ad17ab8531ce9de97b244589089e290a384c900cb9ff7434328"
 dependencies = [
  "bitflags 2.10.0",
- "block2",
- "objc2",
- "objc2-core-foundation",
- "objc2-foundation",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
 ]
 
 [[package]]
-name = "objc2-core-foundation"
-version = "0.3.2"
+name = "openssl-macros"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a180dd8642fa45cdb7dd721cd4c11b1cadd4929ce112ebd8b9f5803cc79d536"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
- "bitflags 2.10.0",
- "dispatch2",
- "objc2",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
-name = "objc2-core-graphics"
-version = "0.3.2"
+name = "openssl-probe"
+version = "0.1.6"
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-dependencies = [
- "bitflags 2.10.0",
- "dispatch2",
- "objc2",
- "objc2-core-foundation",
- "objc2-io-surface",
-]
+checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
 [[package]]
-name = "objc2-encode"
-version = "4.1.0"
+name = "openssl-probe"
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-checksum = "ef25abbcd74fb2609453eb695bd2f860d389e457f67dc17cafc8b8cbc89d0c33"
+checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
 
 [[package]]
-name = "objc2-exception-helper"
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+name = "openssl-sys"
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-checksum = "c7a1c5fbb72d7735b076bb47b578523aedc40f3c439bea6dfd595c089d79d98a"
+checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
 dependencies = [
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+ "libc",
+ "pkg-config",
+ "vcpkg",
 ]
 
 [[package]]
-name = "objc2-foundation"
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+name = "parking_lot"
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-checksum = "e3e0adef53c21f888deb4fa59fc59f7eb17404926ee8a6f59f5df0fd7f9f3272"
+checksum = "93857453250e3077bd71ff98b6a65ea6621a19bb0f559a85248955ac12c45a1a"
 dependencies = [
- "bitflags 2.10.0",
- "block2",
- "libc",
- "objc2",
- "objc2-core-foundation",
+ "lock_api",
+ "parking_lot_core",
 ]
 
 [[package]]
-name = "objc2-io-surface"
-version = "0.3.2"
+name = "parking_lot_core"
+version = "0.9.12"
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-checksum = "180788110936d59bab6bd83b6060ffdfffb3b922ba1396b312ae795e1de9d81d"
+checksum = "2621685985a2ebf1c516881c026032ac7deafcda1a2c9b7850dc81e3dfcb64c1"
 dependencies = [
- "bitflags 2.10.0",
- "objc2",
- "objc2-core-foundation",
+ "cfg-if",
+ "libc",
+ "redox_syscall 0.5.18",
+ "smallvec",
+ "windows-link",
 ]
 
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+ "rustls",
+ "tokio",
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 [[package]]
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 dependencies = [
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+ "bytes",
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@@ -5082,7 +1938,7 @@ dependencies = [
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+ "thiserror",
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@@ -5099,8 +1955,8 @@ dependencies = [
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- "reqwest 0.12.28",
+ "rand",
+ "reqwest",
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@@ -5127,7 +1983,7 @@ dependencies = [
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- "thiserror 1.0.69",
+ "thiserror",
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@@ -5140,36 +1996,8 @@ dependencies = [
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- "tauri-build",
- "tauri-plugin-dialog",
- "tauri-plugin-opener",
- "tauri-plugin-positioner",
- "tempfile",
- "thiserror 1.0.69",
+ "thiserror",
  "toolpath",
- "toolpath-claude",
- "toolpath-codex",
- "toolpath-gemini",
- "toolpath-git",
- "toolpath-github",
- "toolpath-opencode",
- "toolpath-pi",
- "uuid",
 ]
 
 [[package]]
@@ -5189,7 +2017,7 @@ dependencies = [
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- "thiserror 1.0.69",
+ "thiserror",
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@@ -5211,7 +2039,7 @@ version = "0.2.0"
 dependencies = [
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+ "reqwest",
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@@ -5237,7 +2065,7 @@ dependencies = [
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- "thiserror 1.0.69",
+ "thiserror",
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@@ -5251,7 +2079,7 @@ dependencies = [
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  "serde_json",
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- "thiserror 1.0.69",
+ "thiserror",
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@@ -5569,12 +2242,6 @@ dependencies = [
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-
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- "objc2-core-foundation",
- "objc2-foundation",
- "raw-window-handle",
- "windows-sys 0.59.0",
- "windows-version",
+ "anyhow",
+ "indexmap",
+ "wasm-encoder",
+ "wasmparser",
 ]
 
 [[package]]
-name = "windows"
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+name = "wasmparser"
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 dependencies = [
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- "windows-core 0.61.2",
- "windows-future",
- "windows-link 0.1.3",
- "windows-numerics",
+ "bitflags 2.10.0",
+ "hashbrown 0.15.5",
+ "indexmap",
+ "semver",
 ]
 
 [[package]]
-name = "windows-collections"
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+name = "web-sys"
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+checksum = "312e32e551d92129218ea9a2452120f4aabc03529ef03e4d0d82fb2780608598"
 dependencies = [
- "windows-core 0.61.2",
+ "js-sys",
+ "wasm-bindgen",
 ]
 
 [[package]]
-name = "windows-core"
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+name = "winapi-util"
+version = "0.1.11"
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+checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
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- "windows-interface",
- "windows-link 0.1.3",
- "windows-result 0.3.4",
- "windows-strings 0.4.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -5896,20 +2386,9 @@ checksum = "b8e83a14d34d0623b51dce9581199302a221863196a1dde71a7663a4c2be9deb"
 dependencies = [
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-
-[[package]]
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-dependencies = [
- "windows-core 0.61.2",
- "windows-link 0.1.3",
- "windows-threading",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
 ]
 
 [[package]]
@@ -5920,7 +2399,7 @@ checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
 dependencies = [
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- "syn 2.0.115",
+ "syn",
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 [[package]]
@@ -5931,49 +2410,24 @@ checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
 dependencies = [
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- "syn 2.0.115",
+ "syn",
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-[[package]]
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-
 [[package]]
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 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
 
-[[package]]
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-checksum = "9150af68066c4c5c07ddc0ce30421554771e528bde427614c61038bc2c92c2b1"
-dependencies = [
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-]
-
 [[package]]
 name = "windows-registry"
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 checksum = "02752bf7fbdcce7f2a27a742f798510f3e5ad88dbe84871e5168e2120c3d5720"
 dependencies = [
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-dependencies = [
- "windows-link 0.1.3",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
 ]
 
 [[package]]
@@ -5982,16 +2436,7 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7781fa89eaf60850ac3d2da7af8e5242a5ea78d1a11c49bf2910bb5a73853eb5"
 dependencies = [
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-
-[[package]]
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-dependencies = [
- "windows-link 0.1.3",
+ "windows-link",
 ]
 
 [[package]]
@@ -6000,16 +2445,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7837d08f69c77cf6b07689544538e017c1bfcf57e34b4c0ff58e6c2cd3b37091"
 dependencies = [
- "windows-link 0.2.1",
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-
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-checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
-dependencies = [
- "windows-targets 0.42.2",
+ "windows-link",
 ]
 
 [[package]]
@@ -6045,22 +2481,7 @@ version = "0.61.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
 dependencies = [
- "windows-link 0.2.1",
-]
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
-dependencies = [
- "windows_aarch64_gnullvm 0.42.2",
- "windows_aarch64_msvc 0.42.2",
- "windows_i686_gnu 0.42.2",
- "windows_i686_msvc 0.42.2",
- "windows_x86_64_gnu 0.42.2",
- "windows_x86_64_gnullvm 0.42.2",
- "windows_x86_64_msvc 0.42.2",
+ "windows-link",
 ]
 
 [[package]]
@@ -6085,7 +2506,7 @@ version = "0.53.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4945f9f551b88e0d65f3db0bc25c33b8acea4d9e41163edf90dcd0b19f9069f3"
 dependencies = [
- "windows-link 0.2.1",
+ "windows-link",
  "windows_aarch64_gnullvm 0.53.1",
  "windows_aarch64_msvc 0.53.1",
  "windows_i686_gnu 0.53.1",
@@ -6096,30 +2517,6 @@ dependencies = [
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 ]
 
-[[package]]
-name = "windows-threading"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b66463ad2e0ea3bbf808b7f1d371311c80e115c0b71d60efc142cafbcfb057a6"
-dependencies = [
- "windows-link 0.1.3",
-]
-
-[[package]]
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-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4060a1da109b9d0326b7262c8e12c84df67cc0dbc9e33cf49e01ccc2eb63631"
-dependencies = [
- "windows-link 0.2.1",
-]
-
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
-
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.52.6"
@@ -6132,12 +2529,6 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a9d8416fa8b42f5c947f8482c43e7d89e73a173cead56d044f6a56104a6d1b53"
 
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
-
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
@@ -6150,12 +2541,6 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9d782e804c2f632e395708e99a94275910eb9100b2114651e04744e9b125006"
 
-[[package]]
-name = "windows_i686_gnu"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
-
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
@@ -6180,12 +2565,6 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa7359d10048f68ab8b09fa71c3daccfb0e9b559aed648a8f95469c27057180c"
 
-[[package]]
-name = "windows_i686_msvc"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
-
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
@@ -6198,12 +2577,6 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e7ac75179f18232fe9c285163565a57ef8d3c89254a30685b57d83a38d326c2"
 
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
-
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
@@ -6216,12 +2589,6 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c3842cdd74a865a8066ab39c8a7a473c0778a3f29370b5fd6b4b9aa7df4a499"
 
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
-
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
@@ -6234,12 +2601,6 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ffa179e2d07eee8ad8f57493436566c7cc30ac536a3379fdf008f47f6bb7ae1"
 
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
-
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
@@ -6252,43 +2613,6 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876"
-dependencies = [
- "memchr",
-]
-
-[[package]]
-name = "winnow"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df79d97927682d2fd8adb29682d1140b343be4ac0f08fd68b7765d9c059d3945"
-dependencies = [
- "memchr",
-]
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09dac053f1cd375980747450bfc7250c264eaae0583872e845c0c7cd578872b5"
-dependencies = [
- "memchr",
-]
-
-[[package]]
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-dependencies = [
- "cfg-if",
- "windows-sys 0.59.0",
-]
-
 [[package]]
 name = "wit-bindgen"
 version = "0.51.0"
@@ -6305,7 +2629,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ea61de684c3ea68cb082b7a88508a8b27fcc8b797d738bfc99a82facf1d752dc"
 dependencies = [
  "anyhow",
- "heck 0.5.0",
+ "heck",
  "wit-parser",
 ]
 
@@ -6316,10 +2640,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b7c566e0f4b284dd6561c786d9cb0142da491f46a9fbed79ea69cdad5db17f21"
 dependencies = [
  "anyhow",
- "heck 0.5.0",
- "indexmap 2.13.0",
+ "heck",
+ "indexmap",
  "prettyplease",
- "syn 2.0.115",
+ "syn",
  "wasm-metadata",
  "wit-bindgen-core",
  "wit-component",
@@ -6335,7 +2659,7 @@ dependencies = [
  "prettyplease",
  "proc-macro2",
  "quote",
- "syn 2.0.115",
+ "syn",
  "wit-bindgen-core",
  "wit-bindgen-rust",
 ]
@@ -6348,7 +2672,7 @@ checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
 dependencies = [
  "anyhow",
  "bitflags 2.10.0",
- "indexmap 2.13.0",
+ "indexmap",
  "log",
  "serde",
  "serde_derive",
@@ -6367,7 +2691,7 @@ checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
 dependencies = [
  "anyhow",
  "id-arena",
- "indexmap 2.13.0",
+ "indexmap",
  "log",
  "semver",
  "serde",
@@ -6383,71 +2707,6 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9edde0db4769d2dc68579893f2306b26c6ecfbe0ef499b013d731b7b9247e0b9"
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
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- "crossbeam-channel",
- "dirs",
- "dom_query",
- "dpi",
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- "gdkx11",
- "gtk",
- "http",
- "javascriptcore-rs",
- "jni",
- "libc",
- "ndk",
- "objc2",
- "objc2-app-kit",
- "objc2-core-foundation",
- "objc2-foundation",
- "objc2-ui-kit",
- "objc2-web-kit",
- "once_cell",
- "percent-encoding",
- "raw-window-handle",
- "sha2",
- "soup3",
- "tao-macros",
- "thiserror 2.0.18",
- "url",
- "webkit2gtk",
- "webkit2gtk-sys",
- "webview2-com",
- "windows",
- "windows-core 0.61.2",
- "windows-version",
- "x11-dl",
-]
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
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- "pkg-config",
-]
-
-[[package]]
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-dependencies = [
- "libc",
- "once_cell",
- "pkg-config",
-]
-
 [[package]]
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@@ -6467,71 +2726,10 @@ checksum = "b659052874eb698efe5b9e8cf382204678a0086ebf46982b79d6ca3182927e5d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.115",
+ "syn",
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
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- "async-io",
- "async-lock",
- "async-process",
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- "async-task",
- "async-trait",
- "blocking",
- "enumflags2",
- "event-listener",
- "futures-core",
- "futures-lite",
- "hex",
- "libc",
- "ordered-stream",
- "rustix",
- "serde",
- "serde_repr",
- "tracing",
- "uds_windows",
- "uuid",
- "windows-sys 0.61.2",
- "winnow 0.7.15",
- "zbus_macros",
- "zbus_names",
- "zvariant",
-]
-
-[[package]]
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-dependencies = [
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- "proc-macro2",
- "quote",
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- "zbus_names",
- "zvariant",
- "zvariant_utils",
-]
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "serde",
- "winnow 0.7.15",
- "zvariant",
-]
-
 [[package]]
 name = "zerocopy"
 version = "0.8.39"
@@ -6549,7 +2747,7 @@ checksum = "4122cd3169e94605190e77839c9a40d40ed048d305bfdc146e7df40ab0f3e517"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.115",
+ "syn",
 ]
 
 [[package]]
@@ -6569,7 +2767,7 @@ checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.115",
+ "syn",
  "synstructure",
 ]
 
@@ -6609,7 +2807,7 @@ checksum = "eadce39539ca5cb3985590102671f2567e659fca9666581ad3411d59207951f3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.115",
+ "syn",
 ]
 
 [[package]]
@@ -6617,43 +2815,3 @@ name = "zmij"
 version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
-
-[[package]]
-name = "zvariant"
-version = "5.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5708299b21903bbe348e94729f22c49c55d04720a004aa350f1f9c122fd2540b"
-dependencies = [
- "endi",
- "enumflags2",
- "serde",
- "winnow 0.7.15",
- "zvariant_derive",
- "zvariant_utils",
-]
-
-[[package]]
-name = "zvariant_derive"
-version = "5.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b59b012ebe9c46656f9cc08d8da8b4c726510aef12559da3e5f1bf72780752c"
-dependencies = [
- "proc-macro-crate 3.5.0",
- "proc-macro2",
- "quote",
- "syn 2.0.115",
- "zvariant_utils",
-]
-
-[[package]]
-name = "zvariant_utils"
-version = "3.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f75c23a64ef8f40f13a6989991e643554d9bef1d682a281160cf0c1bc389c5e9"
-dependencies = [
- "proc-macro2",
- "quote",
- "serde",
- "syn 2.0.115",
- "winnow 0.7.15",
-]
diff --git a/Cargo.toml b/Cargo.toml
index d62510a..e266f03 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,6 @@ members = [
     "crates/toolpath-md",
     "crates/toolpath-pi",
     "crates/toolpath-cli",
-    "crates/toolpath-desktop",
 ]
 resolver = "2"
 
@@ -32,7 +31,6 @@ toolpath-github = { version = "0.2.0", path = "crates/toolpath-github" }
 toolpath-dot = { version = "0.1.2", path = "crates/toolpath-dot" }
 toolpath-md = { version = "0.2.0", path = "crates/toolpath-md" }
 toolpath-pi = { version = "0.1.0", path = "crates/toolpath-pi" }
-toolpath-desktop = { version = "0.1.0", path = "crates/toolpath-desktop" }
 
 reqwest = { version = "0.12", features = ["blocking", "json"] }
 serde = { version = "1.0", features = ["derive"] }
diff --git a/README.md b/README.md
index 7c5d318..e2942c9 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,6 @@ crates/
   toolpath-dot/       Graphviz DOT visualization
   toolpath-md/        Markdown rendering for LLM consumption
   toolpath-cli/       Unified CLI (binary: path)
-  toolpath-desktop/   Tauri 2 desktop app (binary: toolpath-desktop)
 ```
 
 See each crate's README for library-level documentation.
diff --git a/crates/toolpath-desktop/.gitignore b/crates/toolpath-desktop/.gitignore
deleted file mode 100644
index 3973c5a..0000000
--- a/crates/toolpath-desktop/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-# Generated by tauri-build from tauri.conf.json + capabilities/ on each build.
-# Safe to ignore — regenerated automatically.
-gen/
-node_modules/
diff --git a/crates/toolpath-desktop/.taurignore b/crates/toolpath-desktop/.taurignore
deleted file mode 100644
index a22982e..0000000
--- a/crates/toolpath-desktop/.taurignore
+++ /dev/null
@@ -1,5 +0,0 @@
-# Tauri CLI file-watcher ignore list (gitignore syntax).
-# `cargo tauri dev` watches the crate root and restarts the Rust binary on
-# any change. Vite already hot-reloads the Svelte frontend, so we don't
-# want the frontend tree to trigger a Rust restart.
-frontend/
diff --git a/crates/toolpath-desktop/Cargo.toml b/crates/toolpath-desktop/Cargo.toml
deleted file mode 100644
index 1ef284f..0000000
--- a/crates/toolpath-desktop/Cargo.toml
+++ /dev/null
@@ -1,43 +0,0 @@
-[package]
-name = "toolpath-desktop"
-version = "0.1.0"
-edition.workspace = true
-license.workspace = true
-repository = "https://github.com/empathic/toolpath"
-description = "Desktop app for selecting, previewing, and exporting Toolpath traces"
-keywords = ["toolpath", "desktop", "tauri", "provenance", "pathbase"]
-categories = ["gui", "development-tools"]
-
-[[bin]]
-name = "toolpath-desktop"
-path = "src/main.rs"
-
-[build-dependencies]
-tauri-build = { version = "2", features = [] }
-
-[dependencies]
-toolpath = { workspace = true }
-toolpath-claude = { workspace = true, features = ["watcher"] }
-toolpath-codex = { workspace = true }
-toolpath-gemini = { workspace = true }
-toolpath-git = { workspace = true }
-toolpath-github = { workspace = true }
-toolpath-opencode = { workspace = true }
-toolpath-pi = { workspace = true }
-
-tauri = { version = "2", features = ["tray-icon"] }
-tauri-plugin-dialog = "2"
-tauri-plugin-opener = "2"
-tauri-plugin-positioner = { version = "2", features = ["tray-icon"] }
-
-serde = { workspace = true }
-serde_json = { workspace = true }
-thiserror = { workspace = true }
-anyhow = { workspace = true }
-chrono = { workspace = true }
-git2 = { workspace = true }
-keyring = "3"
-uuid = { version = "1", features = ["v4"] }
-
-[dev-dependencies]
-tempfile = { workspace = true }
diff --git a/crates/toolpath-desktop/README.md b/crates/toolpath-desktop/README.md
deleted file mode 100644
index 8004ec7..0000000
--- a/crates/toolpath-desktop/README.md
+++ /dev/null
@@ -1,70 +0,0 @@
-# toolpath-desktop
-
-Desktop GUI for selecting, previewing, and exporting Toolpath traces.
-
-This crate ships a [Tauri 2](https://tauri.app) application that provides a
-non-technical-user entry point to the Toolpath ecosystem. It is the companion
-app to **Pathbase** — the GitHub-like service for agent traces — and is
-intended for people who won't open a terminal to run the `path` CLI.
-
-## What it does
-
-1. **Discover** — enumerate the user's local agent traces:
-   - Claude Code sessions under `~/.claude/projects/`
-   - Local git branches
-   - GitHub pull requests (by URL)
-2. **Preview** — render the derived Toolpath `Document` as an interactive DAG
-   so the user can see what's in the trace before sharing it.
-3. **Export** — save the document as a local `.path.json` file, **or** upload
-   it to Pathbase. The Pathbase upload is stubbed in v0.1 and logs a mock
-   response; the real API will be wired up in a follow-up.
-4. **Quick View (menu bar)** — a tray icon that sits alongside the regular
-   Dock-icon app. A background thread polls every 30s across all five agent
-   providers (`toolpath-claude`, `-gemini`, `-codex`, `-opencode`, `-pi`)
-   and updates the tray title with an activity count. Left-click opens a
-   small popover listing recent sessions; the menu has an "Open Toolpath"
-   item that brings up the main window, and clicking a recent session in
-   the popover opens its trace directly in the preview. See `src/tray.rs`
-   and `frontend/src/routes/Popover.svelte`.
-
-## Architecture
-
-- **Rust backend** (`src/`) — Tauri commands that link `toolpath`,
-  `toolpath-claude`, `toolpath-git`, and `toolpath-github` directly
-  in-process. No subprocess, no Wasm.
-- **Frontend** (`frontend/`) — Svelte 5 + TypeScript + Vite, built
-  with `bun`. Elm-architecture (TEA) shape: `src/lib/types.ts`,
-  `update.ts`, and `store.svelte.ts` hold `Model`/`Msg`/`Cmd` and
-  the reducer; `src/routes/*.svelte` are pure views over the
-  reactive store. Event subscriptions use Svelte `$effect` for
-  auto-cleanup. DAG rendering via `src/lib/viz.ts` (dagre-d3-es).
-
-## Run in development
-
-```bash
-cargo install tauri-cli --locked --version "^2"  # once
-cd crates/toolpath-desktop
-cd frontend && bun install && cd ..              # once
-cargo tauri dev
-```
-
-`cargo tauri dev` auto-starts the Vite dev server on
-`http://localhost:1420` (via `beforeDevCommand`) and wires Tauri's
-webview to it, so frontend edits hot-reload without restarting Rust.
-
-## Build a bundle
-
-```bash
-cd crates/toolpath-desktop
-cargo tauri build   # runs `bun run build` first, then bundles
-```
-
-Artifacts land under `target/release/bundle/`.
-
-## Scope
-
-In scope for v0.1: source discovery, trace preview, local export, stubbed
-Pathbase upload.
-
-Out of scope: real Pathbase API integration, live/track mode, query UI,
-editing documents, multi-doc Graph merging, identity signing.
diff --git a/crates/toolpath-desktop/build.rs b/crates/toolpath-desktop/build.rs
deleted file mode 100644
index d860e1e..0000000
--- a/crates/toolpath-desktop/build.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-fn main() {
-    tauri_build::build()
-}
diff --git a/crates/toolpath-desktop/bun.lock b/crates/toolpath-desktop/bun.lock
deleted file mode 100644
index 5c5ee3a..0000000
--- a/crates/toolpath-desktop/bun.lock
+++ /dev/null
@@ -1,104 +0,0 @@
-{
-  "lockfileVersion": 1,
-  "configVersion": 1,
-  "workspaces": {
-    "": {
-      "dependencies": {
-        "vite": "^8.0.9",
-      },
-    },
-  },
-  "packages": {
-    "@emnapi/core": ["@emnapi/core@1.9.2", "", { "dependencies": { "@emnapi/wasi-threads": "1.2.1", "tslib": "^2.4.0" } }, "sha512-UC+ZhH3XtczQYfOlu3lNEkdW/p4dsJ1r/bP7H8+rhao3TTTMO1ATq/4DdIi23XuGoFY+Cz0JmCbdVl0hz9jZcA=="],
-
-    "@emnapi/runtime": ["@emnapi/runtime@1.9.2", "", { "dependencies": { "tslib": "^2.4.0" } }, "sha512-3U4+MIWHImeyu1wnmVygh5WlgfYDtyf0k8AbLhMFxOipihf6nrWC4syIm/SwEeec0mNSafiiNnMJwbza/Is6Lw=="],
-
-    "@emnapi/wasi-threads": ["@emnapi/wasi-threads@1.2.1", "", { "dependencies": { "tslib": "^2.4.0" } }, "sha512-uTII7OYF+/Mes/MrcIOYp5yOtSMLBWSIoLPpcgwipoiKbli6k322tcoFsxoIIxPDqW01SQGAgko4EzZi2BNv2w=="],
-
-    "@napi-rs/wasm-runtime": ["@napi-rs/wasm-runtime@1.1.4", "", { "dependencies": { "@tybys/wasm-util": "^0.10.1" }, "peerDependencies": { "@emnapi/core": "^1.7.1", "@emnapi/runtime": "^1.7.1" } }, "sha512-3NQNNgA1YSlJb/kMH1ildASP9HW7/7kYnRI2szWJaofaS1hWmbGI4H+d3+22aGzXXN9IJ+n+GiFVcGipJP18ow=="],
-
-    "@oxc-project/types": ["@oxc-project/types@0.126.0", "", {}, "sha512-oGfVtjAgwQVVpfBrbtk4e1XDyWHRFta6BS3GWVzrF8xYBT2VGQAk39yJS/wFSMrZqoiCU4oghT3Ch0HaHGIHcQ=="],
-
-    "@rolldown/binding-android-arm64": ["@rolldown/binding-android-arm64@1.0.0-rc.16", "", { "os": "android", "cpu": "arm64" }, "sha512-rhY3k7Bsae9qQfOtph2Pm2jZEA+s8Gmjoz4hhmx70K9iMQ/ddeae+xhRQcM5IuVx5ry1+bGfkvMn7D6MJggVSA=="],
-
-    "@rolldown/binding-darwin-arm64": ["@rolldown/binding-darwin-arm64@1.0.0-rc.16", "", { "os": "darwin", "cpu": "arm64" }, "sha512-rNz0yK078yrNn3DrdgN+PKiMOW8HfQ92jQiXxwX8yW899ayV00MLVdaCNeVBhG/TbH3ouYVObo8/yrkiectkcQ=="],
-
-    "@rolldown/binding-darwin-x64": ["@rolldown/binding-darwin-x64@1.0.0-rc.16", "", { "os": "darwin", "cpu": "x64" }, "sha512-r/OmdR00HmD4i79Z//xO06uEPOq5hRXdhw7nzkxQxwSavs3PSHa1ijntdpOiZ2mzOQ3fVVu8C1M19FoNM+dMUQ=="],
-
-    "@rolldown/binding-freebsd-x64": ["@rolldown/binding-freebsd-x64@1.0.0-rc.16", "", { "os": "freebsd", "cpu": "x64" }, "sha512-KcRE5w8h0OnjUatG8pldyD14/CQ5Phs1oxfR+3pKDjboHRo9+MkqQaiIZlZRpsxC15paeXme/I127tUa9TXJ6g=="],
-
-    "@rolldown/binding-linux-arm-gnueabihf": ["@rolldown/binding-linux-arm-gnueabihf@1.0.0-rc.16", "", { "os": "linux", "cpu": "arm" }, "sha512-bT0guA1bpxEJ/ZhTRniQf7rNF8ybvXOuWbNIeLABaV5NGjx4EtOWBTSRGWFU9ZWVkPOZ+HNFP8RMcBokBiZ0Kg=="],
-
-    "@rolldown/binding-linux-arm64-gnu": ["@rolldown/binding-linux-arm64-gnu@1.0.0-rc.16", "", { "os": "linux", "cpu": "arm64" }, "sha512-+tHktCHWV8BDQSjemUqm/Jl/TPk3QObCTIjmdDy/nlupcujZghmKK2962LYrqFpWu+ai01AN/REOH3NEpqvYQg=="],
-
-    "@rolldown/binding-linux-arm64-musl": ["@rolldown/binding-linux-arm64-musl@1.0.0-rc.16", "", { "os": "linux", "cpu": "arm64" }, "sha512-3fPzdREH806oRLxpTWW1Gt4tQHs0TitZFOECB2xzCFLPKnSOy90gwA7P29cksYilFO6XVRY1kzga0cL2nRjKPg=="],
-
-    "@rolldown/binding-linux-ppc64-gnu": ["@rolldown/binding-linux-ppc64-gnu@1.0.0-rc.16", "", { "os": "linux", "cpu": "ppc64" }, "sha512-EKwI1tSrLs7YVw+JPJT/G2dJQ1jl9qlTTTEG0V2Ok/RdOenRfBw2PQdLPyjhIu58ocdBfP7vIRN/pvMsPxs/AQ=="],
-
-    "@rolldown/binding-linux-s390x-gnu": ["@rolldown/binding-linux-s390x-gnu@1.0.0-rc.16", "", { "os": "linux", "cpu": "s390x" }, "sha512-Uknladnb3Sxqu6SEcqBldQyJUpk8NleooZEc0MbRBJ4inEhRYWZX0NJu12vNf2mqAq7gsofAxHrGghiUYjhaLQ=="],
-
-    "@rolldown/binding-linux-x64-gnu": ["@rolldown/binding-linux-x64-gnu@1.0.0-rc.16", "", { "os": "linux", "cpu": "x64" }, "sha512-FIb8+uG49sZBtLTn+zt1AJ20TqVcqWeSIyoVt0or7uAWesgKaHbiBh6OpA/k9v0LTt+PTrb1Lao133kP4uVxkg=="],
-
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-
-    "@rolldown/binding-openharmony-arm64": ["@rolldown/binding-openharmony-arm64@1.0.0-rc.16", "", { "os": "none", "cpu": "arm64" }, "sha512-mXcXnvd9GpazCxeUCCnZ2+YF7nut+ZOEbE4GtaiPtyY6AkhZWbK70y1KK3j+RDhjVq5+U8FySkKRb/+w0EeUwA=="],
-
-    "@rolldown/binding-wasm32-wasi": ["@rolldown/binding-wasm32-wasi@1.0.0-rc.16", "", { "dependencies": { "@emnapi/core": "1.9.2", "@emnapi/runtime": "1.9.2", "@napi-rs/wasm-runtime": "^1.1.4" }, "cpu": "none" }, "sha512-3Q2KQxnC8IJOLqXmUMoYwyIPZU9hzRbnHaoV3Euz+VVnjZKcY8ktnNP8T9R4/GGQtb27C/UYKABxesKWb8lsvQ=="],
-
-    "@rolldown/binding-win32-arm64-msvc": ["@rolldown/binding-win32-arm64-msvc@1.0.0-rc.16", "", { "os": "win32", "cpu": "arm64" }, "sha512-tj7XRemQcOcFwv7qhpUxMTBbI5mWMlE4c1Omhg5+h8GuLXzyj8HviYgR+bB2DMDgRqUE+jiDleqSCRjx4aYk/Q=="],
-
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-
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-
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-
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-    "lightningcss-linux-x64-musl": ["lightningcss-linux-x64-musl@1.32.0", "", { "os": "linux", "cpu": "x64" }, "sha512-bYcLp+Vb0awsiXg/80uCRezCYHNg1/l3mt0gzHnWV9XP1W5sKa5/TCdGWaR/zBM2PeF/HbsQv/j2URNOiVuxWg=="],
-
-    "lightningcss-win32-arm64-msvc": ["lightningcss-win32-arm64-msvc@1.32.0", "", { "os": "win32", "cpu": "arm64" }, "sha512-8SbC8BR40pS6baCM8sbtYDSwEVQd4JlFTOlaD3gWGHfThTcABnNDBda6eTZeqbofalIJhFx0qKzgHJmcPTnGdw=="],
-
-    "lightningcss-win32-x64-msvc": ["lightningcss-win32-x64-msvc@1.32.0", "", { "os": "win32", "cpu": "x64" }, "sha512-Amq9B/SoZYdDi1kFrojnoqPLxYhQ4Wo5XiL8EVJrVsB8ARoC1PWW6VGtT0WKCemjy8aC+louJnjS7U18x3b06Q=="],
-
-    "nanoid": ["nanoid@3.3.11", "", { "bin": { "nanoid": "bin/nanoid.cjs" } }, "sha512-N8SpfPUnUp1bK+PMYW8qSWdl9U+wwNWI4QKxOYDy9JAro3WMX7p2OeVRF9v+347pnakNevPmiHhNmZ2HbFA76w=="],
-
-    "picocolors": ["picocolors@1.1.1", "", {}, "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA=="],
-
-    "picomatch": ["picomatch@4.0.4", "", {}, "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A=="],
-
-    "postcss": ["postcss@8.5.10", "", { "dependencies": { "nanoid": "^3.3.11", "picocolors": "^1.1.1", "source-map-js": "^1.2.1" } }, "sha512-pMMHxBOZKFU6HgAZ4eyGnwXF/EvPGGqUr0MnZ5+99485wwW41kW91A4LOGxSHhgugZmSChL5AlElNdwlNgcnLQ=="],
-
-    "rolldown": ["rolldown@1.0.0-rc.16", "", { "dependencies": { "@oxc-project/types": "=0.126.0", "@rolldown/pluginutils": "1.0.0-rc.16" }, "optionalDependencies": { "@rolldown/binding-android-arm64": "1.0.0-rc.16", "@rolldown/binding-darwin-arm64": "1.0.0-rc.16", "@rolldown/binding-darwin-x64": "1.0.0-rc.16", "@rolldown/binding-freebsd-x64": "1.0.0-rc.16", "@rolldown/binding-linux-arm-gnueabihf": "1.0.0-rc.16", "@rolldown/binding-linux-arm64-gnu": "1.0.0-rc.16", "@rolldown/binding-linux-arm64-musl": "1.0.0-rc.16", "@rolldown/binding-linux-ppc64-gnu": "1.0.0-rc.16", "@rolldown/binding-linux-s390x-gnu": "1.0.0-rc.16", "@rolldown/binding-linux-x64-gnu": "1.0.0-rc.16", "@rolldown/binding-linux-x64-musl": "1.0.0-rc.16", "@rolldown/binding-openharmony-arm64": "1.0.0-rc.16", "@rolldown/binding-wasm32-wasi": "1.0.0-rc.16", "@rolldown/binding-win32-arm64-msvc": "1.0.0-rc.16", "@rolldown/binding-win32-x64-msvc": "1.0.0-rc.16" }, "bin": { "rolldown": "bin/cli.mjs" } }, "sha512-rzi5WqKzEZw3SooTt7cgm4eqIoujPIyGcJNGFL7iPEuajQw7vxMHUkXylu4/vhCkJGXsgRmxqMKXUpT6FEgl0g=="],
-
-    "source-map-js": ["source-map-js@1.2.1", "", {}, "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA=="],
-
-    "tinyglobby": ["tinyglobby@0.2.16", "", { "dependencies": { "fdir": "^6.5.0", "picomatch": "^4.0.4" } }, "sha512-pn99VhoACYR8nFHhxqix+uvsbXineAasWm5ojXoN8xEwK5Kd3/TrhNn1wByuD52UxWRLy8pu+kRMniEi6Eq9Zg=="],
-
-    "tslib": ["tslib@2.8.1", "", {}, "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w=="],
-
-    "vite": ["vite@8.0.9", "", { "dependencies": { "lightningcss": "^1.32.0", "picomatch": "^4.0.4", "postcss": "^8.5.10", "rolldown": "1.0.0-rc.16", "tinyglobby": "^0.2.16" }, "optionalDependencies": { "fsevents": "~2.3.3" }, "peerDependencies": { "@types/node": "^20.19.0 || >=22.12.0", "@vitejs/devtools": "^0.1.0", "esbuild": "^0.27.0 || ^0.28.0", "jiti": ">=1.21.0", "less": "^4.0.0", "sass": "^1.70.0", "sass-embedded": "^1.70.0", "stylus": ">=0.54.8", "sugarss": "^5.0.0", "terser": "^5.16.0", "tsx": "^4.8.1", "yaml": "^2.4.2" }, "optionalPeers": ["@types/node", "@vitejs/devtools", "esbuild", "jiti", "less", "sass", "sass-embedded", "stylus", "sugarss", "terser", "tsx", "yaml"], "bin": { "vite": "bin/vite.js" } }, "sha512-t7g7GVRpMXjNpa67HaVWI/8BWtdVIQPCL2WoozXXA7LBGEFK4AkkKkHx2hAQf5x1GZSlcmEDPkVLSGahxnEEZw=="],
-  }
-}
diff --git a/crates/toolpath-desktop/capabilities/default.json b/crates/toolpath-desktop/capabilities/default.json
deleted file mode 100644
index 081edb6..0000000
--- a/crates/toolpath-desktop/capabilities/default.json
+++ /dev/null
@@ -1,18 +0,0 @@
-{
-  "$schema": "../gen/schemas/desktop-schema.json",
-  "identifier": "default",
-  "description": "Capabilities required by the Toolpath desktop app.",
-  "windows": ["main", "popover"],
-  "permissions": [
-    "core:default",
-    "dialog:default",
-    "opener:default",
-    "positioner:default",
-    "core:window:allow-show",
-    "core:window:allow-hide",
-    "core:window:allow-set-focus",
-    "core:window:allow-close",
-    "core:window:allow-is-visible",
-    "core:window:allow-start-dragging"
-  ]
-}
diff --git a/crates/toolpath-desktop/frontend/.gitignore b/crates/toolpath-desktop/frontend/.gitignore
deleted file mode 100644
index 4c8daff..0000000
--- a/crates/toolpath-desktop/frontend/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-node_modules/
-dist/
-.vite/
-*.tsbuildinfo
diff --git a/crates/toolpath-desktop/frontend/BENCHMARKS.md b/crates/toolpath-desktop/frontend/BENCHMARKS.md
deleted file mode 100644
index 5cb00c2..0000000
--- a/crates/toolpath-desktop/frontend/BENCHMARKS.md
+++ /dev/null
@@ -1,151 +0,0 @@
-# toolpath-desktop Preview benchmarks
-
-Tracks the Preview's performance on synthetic `Path` fixtures at 1k / 5k / 10k
-steps. Filed against [issue #41](https://github.com/empathic/toolpath/issues/41).
-Rerun after [#38](https://github.com/empathic/toolpath/issues/38) (markdown
-memoization) and [#39](https://github.com/empathic/toolpath/issues/39)
-(buildTree dep narrowing) land to quantify the win.
-
-## What's measured
-
-Two layers, split by whether an agent can run them unattended:
-
-| Layer | Hot path | Where it runs | Automatable? |
-|-------|----------|----------------|--------------|
-| Pure TS | `normalize` / `buildTree` / `flattenChatHead` / `classify` / `matchesFilter` | Node-compatible, runs in `bun` | Yes — `bun run bench` |
-| Tauri webview | `renderMarkdown` per turn, `diff.raw.split("\n")` per tool turn, whole-graph re-layout, DOM update | `cargo tauri dev` + real webview | No — manual Chrome DevTools |
-
-Pure-TS numbers are reproducible on any host. Render / memory numbers need a
-human at a running Tauri binary because the cost is dominated by the
-webview's layout/paint, which `bun` doesn't simulate.
-
-## Generating fixtures
-
-Fixtures are not committed (~5 MB at 10k steps, trivially regenerated). From
-the repo root:
-
-```bash
-cargo run -p toolpath-cli --bin gen_synthetic_path -- --steps 1000  --out bench/fixtures/synthetic-1k.path.json
-cargo run -p toolpath-cli --bin gen_synthetic_path -- --steps 5000  --out bench/fixtures/synthetic-5k.path.json
-cargo run -p toolpath-cli --bin gen_synthetic_path -- --steps 10000 --out bench/fixtures/synthetic-10k.path.json
-```
-
-Mix is ~70% conversation turns (alternating user/assistant), ~20% Edit/Write
-tool invocations, ~10% MultiEdit — chosen to approximate a derived Claude
-session. Seed is deterministic (default 42).
-
-## Running the pure-TS bench
-
-From `crates/toolpath-desktop/frontend`:
-
-```bash
-bun install
-bun run bench
-# or a single fixture:
-bun run src/lib/__bench__/preview.bench.ts --fixture ../../../bench/fixtures/synthetic-10k.path.json
-```
-
-Prints `median / p95 / max / mean` over 10 iterations per (size × op) cell.
-
-## Running the manual Tauri bench
-
-1. Generate the 10k fixture (steps above).
-2. `cd crates/toolpath-desktop && cargo tauri dev`.
-3. When the app opens, use **New upload → Local git → Pick** (or whatever
-   route gets you into Preview) on any real session; then in the dev
-   console, paste the fixture as a `PreviewSlice`:
-   ```js
-   // In DevTools console, with the app on the Preview route:
-   const raw = await fetch("file:///ABSOLUTE/PATH/TO/bench/fixtures/synthetic-10k.path.json").then(r => r.text());
-   // Then dispatch a DeriveSucceeded msg via the store. Exact wiring TBD
-   // — the cleanest path is a hidden "load from file" debug Msg; for now
-   // just derive from a real large session and use that.
-   ```
-   In practice the easier route is to derive from a real long Claude session
-   (e.g. `~/.claude/projects/<something>` with 1000+ turns) and measure that
-   directly. Synthetic fixtures catch regressions in normalize / buildTree;
-   they don't exercise `renderMarkdown` the way real prose does.
-4. Open **Chrome DevTools → Performance** (Tauri exposes Chromium devtools;
-   right-click → Inspect).
-5. Click **Record**, interact (open Preview, type in the tree search, toggle
-   view mode between `chat` and `graph`), stop.
-6. Read **Scripting**, **Rendering**, **Painting**, and **Total** columns
-   from the summary.
-7. For memory: DevTools → **Memory → Take heap snapshot** before and after
-   opening the Preview. Subtract for the Document + parsed-DOM footprint.
-
-## Metrics table
-
-Fill in the columns as you run them. Leave `—` for "not measured yet";
-`N/A` for "not measurable in this environment".
-
-### Legend
-- **TFP** — time to first paint of the Preview after `DeriveSucceeded`
-- **Keystroke** — median render time after a keypress in the tree search box
-- **Mem** — resident heap delta when Preview is open vs Home route
-
-### 2026-04-22 baseline (pre-#38, pre-#39)
-
-Host: Apple M4 Pro / Darwin 25.4 / bun 1.3.5 (Node v24 compat) / commit `eliot/issue-41-preview-benchmark` HEAD.
-
-Pure-TS ops, 10 iterations each:
-
-| Size | JSON.parse | normalize | buildTree (median) | buildTree (p95) | keystroke filter | flattenChatHead | classify × all |
-|------|------------|-----------|---------------------|------------------|-------------------|------------------|-----------------|
-| 1k   | 1.16 ms    | 0.23 ms   | **3.98 ms**         | 7.5 ms           | 0.08 ms           | 0.23 ms          | 0.14 ms         |
-| 5k   | 3.17 ms    | 0.79 ms   | **82.2 ms**         | 113 ms           | 0.43 ms           | 1.20 ms          | 0.47 ms         |
-| 10k  | 6.32 ms    | 2.15 ms   | **579 ms**          | 1830 ms          | 1.12 ms           | 5.34 ms          | 1.49 ms         |
-
-Tauri webview ops (measure manually, DevTools → Performance):
-
-| Size | TFP | Keystroke (DOM-updated) | Mem (Document + DOM) |
-|------|-----|--------------------------|------------------------|
-| 1k   | —   | —                        | —                      |
-| 5k   | —   | —                        | —                      |
-| 10k  | —   | —                        | —                      |
-
-### Notes on the 2026-04-22 baseline
-
-- `buildTree` at 10k is **way above** the 200 ms target from the issue
-  (median 579 ms, p95 1.8 s). Expected — the HEAD-ancestor walk inside
-  `normalize` and the DFS in `flattenTree` are both O(N) with per-node
-  allocations, and the variance suggests significant GC pressure. This is
-  the primary thing #39 should improve.
-- `filter(matchesFilter)` itself is fine in pure TS (1 ms at 10k) — the
-  keystroke cost in the UI is dominated by `renderMarkdown` inside
-  `StepTree.svelte`'s re-render, not the filter. #38 should eliminate that.
-- `flattenChatHead` is cheap (5.3 ms at 10k) because it only walks the HEAD
-  spine.
-- `classify` is near-free; no need to memoize it unless #38 reveals it
-  inside a hot loop.
-- Numbers are from `bun` running on Node-compatible mode, not a real
-  webview. Webview layout/paint and V8 JIT vs JavaScriptCore differ — treat
-  these as **lower bounds** for what the Preview actually experiences.
-
-### Post-#38 / post-#39 rerun
-
-Rerun `bun run bench` on this same branch layout after the fix PRs land and
-fill the table below. Commit numbers alongside the reference to the merged
-PR number.
-
-| Size | buildTree (median) | keystroke (DOM) | TFP (Tauri) |
-|------|---------------------|------------------|--------------|
-| 1k   | —                   | —                | —            |
-| 5k   | —                   | —                | —            |
-| 10k  | —                   | —                | —            |
-
-## When to act
-
-The issue calls out **200 ms on a keystroke** as the threshold. A few rules
-of thumb for reading the table:
-
-- Pure-TS `buildTree` > 100 ms at any size → probably visible as a freeze;
-  deserves a targeted fix (memoization, incremental update, or dep
-  narrowing — #39).
-- Keystroke (DOM-updated) > 200 ms → real user-visible lag; deserves a
-  targeted fix (virtualized list, markdown memo — #38).
-- Memory delta > ~200 MB for a 10k-step Document → investigate the parsed
-  DOM; consider lazy-rendering off-screen cards.
-
-Don't file sub-issues for known wins from #38 / #39 — they're already
-tracked.
diff --git a/crates/toolpath-desktop/frontend/bun.lock b/crates/toolpath-desktop/frontend/bun.lock
deleted file mode 100644
index 17ba4e2..0000000
--- a/crates/toolpath-desktop/frontend/bun.lock
+++ /dev/null
@@ -1,285 +0,0 @@
-{
-  "lockfileVersion": 1,
-  "configVersion": 1,
-  "workspaces": {
-    "": {
-      "name": "toolpath-desktop-frontend",
-      "dependencies": {
-        "@tauri-apps/api": "^2",
-        "@tauri-apps/plugin-dialog": "^2.7.0",
-        "@tauri-apps/plugin-opener": "^2.5.3",
-        "dompurify": "^3.4.1",
-        "marked": "^18.0.2",
-      },
-      "devDependencies": {
-        "@dagrejs/dagre": "^1.1.4",
-        "@sveltejs/vite-plugin-svelte": "^5",
-        "@tsconfig/svelte": "^5",
-        "svelte": "^5",
-        "svelte-check": "^4",
-        "typescript": "^5",
-        "vite": "^6",
-        "vitest": "^4.1.5",
-      },
-    },
-  },
-  "packages": {
-    "@dagrejs/dagre": ["@dagrejs/dagre@1.1.8", "", { "dependencies": { "@dagrejs/graphlib": "2.2.4" } }, "sha512-5SEDlndt4W/LaVzPYJW+bSmSEZc9EzTf8rJ20WCKvjS5EAZAN0b+x0Yww7VMT4R3Wootkg+X9bUfUxazYw6Blw=="],
-
-    "@dagrejs/graphlib": ["@dagrejs/graphlib@2.2.4", "", {}, "sha512-mepCf/e9+SKYy1d02/UkvSy6+6MoyXhVxP8lLDfA7BPE1X1d4dR0sZznmbM8/XVJ1GPM+Svnx7Xj6ZweByWUkw=="],
-
-    "@esbuild/aix-ppc64": ["@esbuild/aix-ppc64@0.25.12", "", { "os": "aix", "cpu": "ppc64" }, "sha512-Hhmwd6CInZ3dwpuGTF8fJG6yoWmsToE+vYgD4nytZVxcu1ulHpUQRAB1UJ8+N1Am3Mz4+xOByoQoSZf4D+CpkA=="],
-
-    "@esbuild/android-arm": ["@esbuild/android-arm@0.25.12", "", { "os": "android", "cpu": "arm" }, "sha512-VJ+sKvNA/GE7Ccacc9Cha7bpS8nyzVv0jdVgwNDaR4gDMC/2TTRc33Ip8qrNYUcpkOHUT5OZ0bUcNNVZQ9RLlg=="],
-
-    "@esbuild/android-arm64": ["@esbuild/android-arm64@0.25.12", "", { "os": "android", "cpu": "arm64" }, "sha512-6AAmLG7zwD1Z159jCKPvAxZd4y/VTO0VkprYy+3N2FtJ8+BQWFXU+OxARIwA46c5tdD9SsKGZ/1ocqBS/gAKHg=="],
-
-    "@esbuild/android-x64": ["@esbuild/android-x64@0.25.12", "", { "os": "android", "cpu": "x64" }, "sha512-5jbb+2hhDHx5phYR2By8GTWEzn6I9UqR11Kwf22iKbNpYrsmRB18aX/9ivc5cabcUiAT/wM+YIZ6SG9QO6a8kg=="],
-
-    "@esbuild/darwin-arm64": ["@esbuild/darwin-arm64@0.25.12", "", { "os": "darwin", "cpu": "arm64" }, "sha512-N3zl+lxHCifgIlcMUP5016ESkeQjLj/959RxxNYIthIg+CQHInujFuXeWbWMgnTo4cp5XVHqFPmpyu9J65C1Yg=="],
-
-    "@esbuild/darwin-x64": ["@esbuild/darwin-x64@0.25.12", "", { "os": "darwin", "cpu": "x64" }, "sha512-HQ9ka4Kx21qHXwtlTUVbKJOAnmG1ipXhdWTmNXiPzPfWKpXqASVcWdnf2bnL73wgjNrFXAa3yYvBSd9pzfEIpA=="],
-
-    "@esbuild/freebsd-arm64": ["@esbuild/freebsd-arm64@0.25.12", "", { "os": "freebsd", "cpu": "arm64" }, "sha512-gA0Bx759+7Jve03K1S0vkOu5Lg/85dou3EseOGUes8flVOGxbhDDh/iZaoek11Y8mtyKPGF3vP8XhnkDEAmzeg=="],
-
-    "@esbuild/freebsd-x64": ["@esbuild/freebsd-x64@0.25.12", "", { "os": "freebsd", "cpu": "x64" }, "sha512-TGbO26Yw2xsHzxtbVFGEXBFH0FRAP7gtcPE7P5yP7wGy7cXK2oO7RyOhL5NLiqTlBh47XhmIUXuGciXEqYFfBQ=="],
-
-    "@esbuild/linux-arm": ["@esbuild/linux-arm@0.25.12", "", { "os": "linux", "cpu": "arm" }, "sha512-lPDGyC1JPDou8kGcywY0YILzWlhhnRjdof3UlcoqYmS9El818LLfJJc3PXXgZHrHCAKs/Z2SeZtDJr5MrkxtOw=="],
-
-    "@esbuild/linux-arm64": ["@esbuild/linux-arm64@0.25.12", "", { "os": "linux", "cpu": "arm64" }, "sha512-8bwX7a8FghIgrupcxb4aUmYDLp8pX06rGh5HqDT7bB+8Rdells6mHvrFHHW2JAOPZUbnjUpKTLg6ECyzvas2AQ=="],
-
-    "@esbuild/linux-ia32": ["@esbuild/linux-ia32@0.25.12", "", { "os": "linux", "cpu": "ia32" }, "sha512-0y9KrdVnbMM2/vG8KfU0byhUN+EFCny9+8g202gYqSSVMonbsCfLjUO+rCci7pM0WBEtz+oK/PIwHkzxkyharA=="],
-
-    "@esbuild/linux-loong64": ["@esbuild/linux-loong64@0.25.12", "", { "os": "linux", "cpu": "none" }, "sha512-h///Lr5a9rib/v1GGqXVGzjL4TMvVTv+s1DPoxQdz7l/AYv6LDSxdIwzxkrPW438oUXiDtwM10o9PmwS/6Z0Ng=="],
-
-    "@esbuild/linux-mips64el": ["@esbuild/linux-mips64el@0.25.12", "", { "os": "linux", "cpu": "none" }, "sha512-iyRrM1Pzy9GFMDLsXn1iHUm18nhKnNMWscjmp4+hpafcZjrr2WbT//d20xaGljXDBYHqRcl8HnxbX6uaA/eGVw=="],
-
-    "@esbuild/linux-ppc64": ["@esbuild/linux-ppc64@0.25.12", "", { "os": "linux", "cpu": "ppc64" }, "sha512-9meM/lRXxMi5PSUqEXRCtVjEZBGwB7P/D4yT8UG/mwIdze2aV4Vo6U5gD3+RsoHXKkHCfSxZKzmDssVlRj1QQA=="],
-
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-
-    "@esbuild/linux-s390x": ["@esbuild/linux-s390x@0.25.12", "", { "os": "linux", "cpu": "s390x" }, "sha512-MsKncOcgTNvdtiISc/jZs/Zf8d0cl/t3gYWX8J9ubBnVOwlk65UIEEvgBORTiljloIWnBzLs4qhzPkJcitIzIg=="],
-
-    "@esbuild/linux-x64": ["@esbuild/linux-x64@0.25.12", "", { "os": "linux", "cpu": "x64" }, "sha512-uqZMTLr/zR/ed4jIGnwSLkaHmPjOjJvnm6TVVitAa08SLS9Z0VM8wIRx7gWbJB5/J54YuIMInDquWyYvQLZkgw=="],
-
-    "@esbuild/netbsd-arm64": ["@esbuild/netbsd-arm64@0.25.12", "", { "os": "none", "cpu": "arm64" }, "sha512-xXwcTq4GhRM7J9A8Gv5boanHhRa/Q9KLVmcyXHCTaM4wKfIpWkdXiMog/KsnxzJ0A1+nD+zoecuzqPmCRyBGjg=="],
-
-    "@esbuild/netbsd-x64": ["@esbuild/netbsd-x64@0.25.12", "", { "os": "none", "cpu": "x64" }, "sha512-Ld5pTlzPy3YwGec4OuHh1aCVCRvOXdH8DgRjfDy/oumVovmuSzWfnSJg+VtakB9Cm0gxNO9BzWkj6mtO1FMXkQ=="],
-
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diff --git a/crates/toolpath-desktop/frontend/index.html b/crates/toolpath-desktop/frontend/index.html
deleted file mode 100644
index 97b3c51..0000000
--- a/crates/toolpath-desktop/frontend/index.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Toolpath Desktop</title>
-  </head>
-  <body>
-    <div id="app"></div>
-    <script type="module" src="/src/main.ts"></script>
-  </body>
-</html>
diff --git a/crates/toolpath-desktop/frontend/package.json b/crates/toolpath-desktop/frontend/package.json
deleted file mode 100644
index d64cc35..0000000
--- a/crates/toolpath-desktop/frontend/package.json
+++ /dev/null
@@ -1,31 +0,0 @@
-{
-  "name": "toolpath-desktop-frontend",
-  "private": true,
-  "type": "module",
-  "version": "0.1.0",
-  "scripts": {
-    "dev": "vite",
-    "build": "vite build",
-    "check": "svelte-check --tsconfig ./tsconfig.json",
-    "test": "vitest run",
-    "test:watch": "vitest",
-    "bench": "bun run src/lib/__bench__/preview.bench.ts"
-  },
-  "dependencies": {
-    "@tauri-apps/api": "^2",
-    "@tauri-apps/plugin-dialog": "^2.7.0",
-    "@tauri-apps/plugin-opener": "^2.5.3",
-    "dompurify": "^3.4.1",
-    "marked": "^18.0.2"
-  },
-  "devDependencies": {
-    "@dagrejs/dagre": "^1.1.4",
-    "@sveltejs/vite-plugin-svelte": "^5",
-    "@tsconfig/svelte": "^5",
-    "svelte": "^5",
-    "svelte-check": "^4",
-    "typescript": "^5",
-    "vite": "^6",
-    "vitest": "^4.1.5"
-  }
-}
diff --git a/crates/toolpath-desktop/frontend/popover.html b/crates/toolpath-desktop/frontend/popover.html
deleted file mode 100644
index 9dd8b7f..0000000
--- a/crates/toolpath-desktop/frontend/popover.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Toolpath Quick View</title>
-  </head>
-  <body>
-    <div id="popover"></div>
-    <script type="module" src="/src/popover.ts"></script>
-  </body>
-</html>
diff --git a/crates/toolpath-desktop/frontend/public/contour-texture.svg b/crates/toolpath-desktop/frontend/public/contour-texture.svg
deleted file mode 100644
index de9b29e..0000000
--- a/crates/toolpath-desktop/frontend/public/contour-texture.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 300" role="img" aria-label="Contour texture">
-  <rect width="800" height="300" fill="#ece6d6"></rect>
-  <g fill="none" stroke="#8c6a3a" stroke-width="0.5" opacity="0.65">
-    <path d="M -20 40  C 100 20, 220 80, 340 50 S 580 20, 700 60 S 820 50, 820 50"></path>
-    <path d="M -20 70  C 120 50, 240 100, 360 80 S 580 60, 700 100 S 820 90, 820 90"></path>
-    <path d="M -20 100 C 140 80, 260 130, 380 110 S 600 90, 700 130 S 820 120, 820 120"></path>
-    <path d="M -20 140 C 160 120, 280 170, 400 150 S 620 130, 700 170 S 820 160, 820 160"></path>
-    <path d="M -20 180 C 180 160, 300 210, 420 190 S 640 170, 720 210 S 820 200, 820 200"></path>
-    <path d="M -20 220 C 200 200, 320 250, 440 230 S 660 210, 740 250 S 820 240, 820 240"></path>
-    <path d="M -20 260 C 220 240, 340 290, 460 270 S 680 250, 760 290 S 820 280, 820 280"></path>
-  </g>
-  <g fill="none" stroke="#6d4f26" stroke-width="0.9" opacity="0.8">
-    <path d="M -20 130 C 150 110, 270 160, 390 140 S 610 120, 700 160 S 820 150, 820 150"></path>
-  </g>
-</svg>
\ No newline at end of file
diff --git a/crates/toolpath-desktop/frontend/src/app.svelte b/crates/toolpath-desktop/frontend/src/app.svelte
deleted file mode 100644
index dbdf133..0000000
--- a/crates/toolpath-desktop/frontend/src/app.svelte
+++ /dev/null
@@ -1,173 +0,0 @@
-<script lang="ts">
-    import { store } from "./lib/store.svelte";
-    import { listen } from "./lib/ipc";
-    import type { UnlistenFn } from "@tauri-apps/api/event";
-    import Home from "./routes/Home.svelte";
-    import BrowseAgents from "./routes/BrowseAgents.svelte";
-    import BrowseClaude from "./routes/BrowseClaude.svelte";
-    import BrowsePi from "./routes/BrowsePi.svelte";
-    import BrowseGit from "./routes/BrowseGit.svelte";
-    import BrowseGithub from "./routes/BrowseGithub.svelte";
-    import Preview from "./routes/Preview.svelte";
-    import Result from "./routes/Result.svelte";
-    import PerfOverlay from "./lib/PerfOverlay.svelte";
-    import { perfStart, perfMark } from "./lib/perf.svelte";
-    import type { Document, Route } from "./lib/types";
-
-    const notInTauri =
-        typeof window !== "undefined" &&
-        !(window as unknown as { __TAURI_INTERNALS__?: unknown })
-            .__TAURI_INTERNALS__;
-
-    // Primary nav. §-numbers match the cartographic eyebrow styling.
-    const TABS: { key: Route; num: string; label: string }[] = [
-        { key: "home", num: "1", label: "New upload" },
-        { key: "preview", num: "2", label: "Preview" },
-        { key: "result", num: "3", label: "Result" },
-    ];
-
-    // "Home" is selected whenever we're on home or in any browse sub-flow.
-    function activeTab(r: Route): Route {
-        if (r.startsWith("browse-")) return "home";
-        return r;
-    }
-
-    // Theme — soft-graphite dark mode, persisted to localStorage and applied
-    // via <html data-theme="dark">. Mirrors the Pathbase design system.
-    type Theme = "light" | "dark";
-    const THEME_KEY = "toolpath.theme";
-
-    function readInitialTheme(): Theme {
-        if (typeof window === "undefined") return "light";
-        const saved = window.localStorage.getItem(THEME_KEY);
-        if (saved === "light" || saved === "dark") return saved;
-        return window.matchMedia?.("(prefers-color-scheme: dark)").matches
-            ? "dark"
-            : "light";
-    }
-
-    let theme = $state<Theme>(readInitialTheme());
-
-    $effect(() => {
-        if (typeof document === "undefined") return;
-        document.documentElement.setAttribute("data-theme", theme);
-        window.localStorage.setItem(THEME_KEY, theme);
-    });
-
-    function toggleTheme() {
-        theme = theme === "dark" ? "light" : "dark";
-    }
-
-    // Quick View menu-bar → main window: when the user clicks a recent
-    // session in the tray popover, the Rust side derives the doc and emits
-    // `trace:opened` here. We route it through the standard DeriveSucceeded
-    // flow so the reducer navigates to the preview route.
-    interface TraceOpenedPayload {
-        doc: Document;
-        source: string;
-        filename: string;
-    }
-    $effect(() => {
-        let unlisten: UnlistenFn | undefined;
-        listen<TraceOpenedPayload>("trace:opened", (payload) => {
-            // Perf: this is the popover's post-derive delivery; Rust did the
-            // derive out-of-band so what's left is pure model + render time.
-            // Seeing this trace end at 20ms vs 600ms tells us whether perceived
-            // lag is the derive or the Svelte/dagre render.
-            perfStart("trace:opened → preview");
-            perfMark("event-received");
-            store.dispatch({
-                t: "DeriveSucceeded",
-                doc: payload.doc,
-                source: payload.source,
-                filename: payload.filename,
-            });
-        }).then((fn) => (unlisten = fn));
-        return () => unlisten?.();
-    });
-</script>
-
-<div class="backdrop"></div>
-
-<div class="window">
-    <!-- Primary tabs -->
-    <nav class="tabs" aria-label="Primary">
-        {#each TABS as t (t.key)}
-            {@const isActive = activeTab(store.m.route) === t.key}
-            {@const disabled =
-                (t.key === "preview" && !store.m.preview) ||
-                (t.key === "result" && !store.m.result)}
-            <button
-                class={"tabs__item" + (isActive ? " tabs__item--active" : "")}
-                {disabled}
-                style={disabled ? "opacity:0.4;cursor:not-allowed" : ""}
-                onclick={() =>
-                    !disabled &&
-                    store.dispatch({ t: "NavigateTo", screen: t.key })}
-            >
-                <span class="tabs__num">{t.num}:</span>
-                <span>{t.label}</span>
-            </button>
-        {/each}
-        <button
-            type="button"
-            class="theme-toggle"
-            onclick={toggleTheme}
-            aria-label="Toggle theme"
-            aria-pressed={theme === "dark"}
-            title={theme === "dark"
-                ? "Switch to light mode"
-                : "Switch to dark mode"}
-        >
-            <span class="theme-toggle__glyph" aria-hidden="true"
-                >{theme === "dark" ? "◑" : "◐"}</span
-            >
-            <span>{theme === "dark" ? "Dark" : "Light"}</span>
-        </button>
-    </nav>
-
-    <!-- Main scroll area -->
-    <main class="main">
-        {#if notInTauri}
-            <div class="banner">
-                <strong>Not a Tauri window.</strong>
-                This page is the Vite dev server; IPC calls won't work. Use the native
-                window opened by <code>cargo tauri dev</code>.
-            </div>
-        {/if}
-
-        {#if store.m.error}
-            <div class="page" style="padding-bottom:0">
-                <div class="error">
-                    <span>{store.m.error}</span>
-                    <span class="spacer"></span>
-                    <button
-                        class="btn btn--sm"
-                        onclick={() => store.dispatch({ t: "ClearError" })}
-                        >Dismiss</button
-                    >
-                </div>
-            </div>
-        {/if}
-
-        {#if store.m.route === "home"}
-            <Home />
-        {:else if store.m.route === "browse-agents"}
-            <BrowseAgents />
-        {:else if store.m.route === "browse-claude"}
-            <BrowseClaude />
-        {:else if store.m.route === "browse-pi"}
-            <BrowsePi />
-        {:else if store.m.route === "browse-git"}
-            <BrowseGit />
-        {:else if store.m.route === "browse-github"}
-            <BrowseGithub />
-        {:else if store.m.route === "preview"}
-            <Preview />
-        {:else if store.m.route === "result"}
-            <Result />
-        {/if}
-    </main>
-</div>
-
-<PerfOverlay />
diff --git a/crates/toolpath-desktop/frontend/src/lib/ChatView.svelte b/crates/toolpath-desktop/frontend/src/lib/ChatView.svelte
deleted file mode 100644
index e3c7c96..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/ChatView.svelte
+++ /dev/null
@@ -1,249 +0,0 @@
-<script lang="ts">
-  // Chat / transcript view modelled on Claude's native desktop chat:
-  //   — User messages: right-aligned, soft card, warm paper tint.
-  //   — Assistant messages: left-aligned prose, no bubble; model label
-  //     above, tool-use chip below if the turn invoked tools.
-  //   — Tool invocations: expandable inline blocks (collapsed by default).
-  //   — System / init / event entries: centered hair-rule divider.
-  //
-  // Data is extracted from `step.change[k].structural.extra` by
-  // `flattenChatHead` in ./tree.ts.
-
-  import { tick } from "svelte";
-  import { store } from "./store.svelte";
-  import {
-    buildTree,
-    flattenChatHead,
-    type ChatTurn,
-  } from "./tree";
-
-  const preview = $derived(store.m.preview);
-  const doc = $derived(preview?.doc ?? null);
-  const built = $derived(doc ? buildTree(doc) : null);
-  const turns = $derived<ChatTurn[]>(built ? flattenChatHead(built.norm) : []);
-  const selectedId = $derived(preview?.selectedStep?.step.id ?? null);
-
-
-  let scrollEl: HTMLDivElement | null = $state(null);
-  let expandedTools: Record<string, true> = $state({});
-  // Explicitly-collapsed-by-user set. File-write tools with a diff default
-  // to expanded; clicking the head adds the id here to collapse it.
-  let collapsedTools: Record<string, true> = $state({});
-
-  function isExpanded(t: ChatTurn): boolean {
-    if (collapsedTools[t.id]) return false;
-    if (expandedTools[t.id]) return true;
-    // Default: auto-expand tool turns that have a raw diff to show.
-    return !!t.toolDiff;
-  }
-
-  $effect(() => {
-    const id = selectedId;
-    if (!id || !scrollEl) return;
-    (async () => {
-      await tick();
-      const el = scrollEl?.querySelector<HTMLElement>(`[data-chat-id="${cssEsc(id)}"]`);
-      if (el) el.scrollIntoView({ block: "nearest", behavior: "smooth" });
-    })();
-  });
-
-  function cssEsc(s: string): string {
-    return s.replace(/"/g, '\\"');
-  }
-
-  function onSelect(t: ChatTurn) {
-    if (!built) return;
-    store.dispatch({
-      t: "PreviewSelectStep",
-      step: t.step,
-      actors: built.norm.actors,
-    });
-  }
-
-  function toggleTool(t: ChatTurn) {
-    const id = t.id;
-    const currentlyOpen = isExpanded(t);
-    if (currentlyOpen) {
-      collapsedTools = { ...collapsedTools, [id]: true };
-      const e = { ...expandedTools };
-      delete e[id];
-      expandedTools = e;
-    } else {
-      const c = { ...collapsedTools };
-      delete c[id];
-      collapsedTools = c;
-      expandedTools = { ...expandedTools, [id]: true };
-    }
-  }
-
-  function fmtTime(iso: string | null): string {
-    if (!iso) return "";
-    return iso.replace("T", " ").replace("Z", "");
-  }
-
-  function readField(t: ChatTurn, field: string): string {
-    // StructuralChange#extra is #[serde(flatten)]-ed, so fields live on
-    // the structural root. Scan all change artifacts — the tool payload
-    // tends to be on the agent://…/tool/… key, not the conversation one.
-    const ch = t.step.change;
-    if (!ch) return "";
-    for (const key of Object.keys(ch)) {
-      const s = ch[key]?.structural as Record<string, unknown> | undefined;
-      if (!s) continue;
-      const v = s[field];
-      if (v == null) continue;
-      if (typeof v === "string") return v;
-      try { return JSON.stringify(v, null, 2); } catch { return String(v); }
-    }
-    return "";
-  }
-  const toolInput = (t: ChatTurn) => readField(t, "input");
-  const toolResult = (t: ChatTurn) => readField(t, "result");
-
-  /** Tag each diff line with a class so CSS can color add/remove/hunk/meta. */
-  function diffLineClass(line: string): string {
-    if (line.startsWith("@@")) return "diff-line diff-line--hunk";
-    if (line.startsWith("+++") || line.startsWith("---")) return "diff-line diff-line--meta";
-    if (line.startsWith("+")) return "diff-line diff-line--add";
-    if (line.startsWith("-")) return "diff-line diff-line--del";
-    if (line.startsWith("#")) return "diff-line diff-line--meta"; // "# edit N/total"
-    return "diff-line";
-  }
-</script>
-
-{#if preview && built}
-  {#if turns.length === 0}
-    <div class="chat-view__empty">
-      This document has no HEAD path to transcribe. Switch to graph view to
-      inspect the raw DAG.
-    </div>
-  {:else}
-    <div class="chat-view" bind:this={scrollEl}>
-      {#each turns as t (t.id)}
-        {@const selected = t.id === selectedId}
-
-        {#if t.kind === "user"}
-          <div
-            class={"chat-msg chat-msg--user" + (selected ? " chat-msg--active" : "")}
-            data-chat-id={t.id}
-            onclick={() => onSelect(t)}
-            role="button"
-            tabindex="0"
-            onkeydown={(e) => { if (e.key === "Enter") onSelect(t); }}
-          >
-            <div class="chat-msg__bubble">
-              {#if t.text}
-                <div class="chat-msg__text markdown">{@html t.textHtml}</div>
-              {:else}
-                <div class="chat-msg__text chat-msg__text--empty">(empty message)</div>
-              {/if}
-            </div>
-            <div class="chat-msg__meta">
-              <span>You</span>
-              {#if t.timestamp}<span class="chat-msg__sep">·</span><span>{fmtTime(t.timestamp)}</span>{/if}
-            </div>
-          </div>
-
-        {:else if t.kind === "assistant"}
-          <div
-            class={"chat-msg chat-msg--assistant" + (selected ? " chat-msg--active" : "")}
-            data-chat-id={t.id}
-            onclick={() => onSelect(t)}
-            role="button"
-            tabindex="0"
-            onkeydown={(e) => { if (e.key === "Enter") onSelect(t); }}
-          >
-            <div class="chat-msg__label">
-              <span class="chat-msg__name">{t.actorDisplay}</span>
-              {#if t.model}<span class="chat-msg__sep">·</span><span class="chat-msg__model">{t.model}</span>{/if}
-            </div>
-
-            {#if t.thinking}
-              <details class="chat-thinking">
-                <summary>Thinking…</summary>
-                <div class="chat-thinking__body markdown">{@html t.thinkingHtml}</div>
-              </details>
-            {/if}
-
-            {#if t.text}
-              <div class="chat-msg__text markdown">{@html t.textHtml}</div>
-            {:else if t.toolNames.length === 0}
-              <div class="chat-msg__text chat-msg__text--empty">(no text in this turn)</div>
-            {/if}
-
-            {#if t.toolNames.length}
-              <div class="chat-tools">
-                <span class="chat-tools__label">Used</span>
-                {#each t.toolNames as name, i (i)}
-                  <span class="chat-tools__chip">{name}</span>
-                {/each}
-              </div>
-            {/if}
-
-            <div class="chat-msg__meta chat-msg__meta--left">
-              {#if t.timestamp}<span>{fmtTime(t.timestamp)}</span>{/if}
-            </div>
-
-            {#if t.toolInvocations.length}
-              <div class="chat-tool-list">
-                {#each t.toolInvocations as tool (tool.id)}
-                  {@const expanded = isExpanded(tool)}
-                  {@const diff = tool.toolDiff}
-                  <div class={"chat-tool" + (diff ? " chat-tool--has-diff" : "")} data-chat-id={tool.id}>
-                    <button
-                      type="button"
-                      class="chat-tool__head"
-                      onclick={(e) => { e.stopPropagation(); toggleTool(tool); }}
-                      aria-expanded={expanded}
-                    >
-                      <span class="chat-tool__caret">{expanded ? "▾" : "▸"}</span>
-                      <span class="chat-tool__name">{tool.toolName ?? "tool"}</span>
-                      {#if diff}
-                        <span class="chat-tool__sep">·</span>
-                        <span class="chat-tool__path">{diff.path}</span>
-                      {/if}
-                      <span class="chat-msg__spacer"></span>
-                      {#if tool.timestamp}<span class="chat-tool__ts">{fmtTime(tool.timestamp)}</span>{/if}
-                    </button>
-                    {#if expanded}
-                      {@const input = toolInput(tool)}
-                      {@const result = toolResult(tool)}
-                      <div class="chat-tool__body">
-                        {#if diff}
-                          <div class="chat-tool__section-label">Diff · {diff.path}</div>
-                          <pre class="chat-tool__diff"><code>{#each diff.lines as line, i (i)}<span class={diffLineClass(line)}>{line}
-</span>{/each}</code></pre>
-                        {:else if input}
-                          <div class="chat-tool__section-label">Input</div>
-                          <pre class="chat-tool__pre">{input}</pre>
-                        {/if}
-                        {#if result}
-                          <div class="chat-tool__section-label">Result</div>
-                          <pre class="chat-tool__pre">{result}</pre>
-                        {/if}
-                        {#if !diff && !input && !result}
-                          <div class="chat-tool__empty">(no captured input/result)</div>
-                        {/if}
-                      </div>
-                    {/if}
-                  </div>
-                {/each}
-              </div>
-            {/if}
-          </div>
-
-        {:else}
-          <!-- system / init / event -->
-          <div class="chat-divider" data-chat-id={t.id} onclick={() => onSelect(t)} role="button" tabindex="0" onkeydown={(e) => { if (e.key === "Enter") onSelect(t); }}>
-            <span class="chat-divider__line"></span>
-            <span class="chat-divider__label">
-              {t.intent || t.actorDisplay || "system event"}
-              {#if t.timestamp}<span class="chat-msg__sep">·</span>{fmtTime(t.timestamp)}{/if}
-            </span>
-            <span class="chat-divider__line"></span>
-          </div>
-        {/if}
-      {/each}
-    </div>
-  {/if}
-{/if}
diff --git a/crates/toolpath-desktop/frontend/src/lib/PerfOverlay.svelte b/crates/toolpath-desktop/frontend/src/lib/PerfOverlay.svelte
deleted file mode 100644
index 076641d..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/PerfOverlay.svelte
+++ /dev/null
@@ -1,164 +0,0 @@
-<script lang="ts">
-  import { perf, perfOverlayEnabled } from "./perf.svelte";
-
-  const enabled = $derived(perfOverlayEnabled());
-  const trace = $derived(perf.latest);
-
-  // Map marks to phase bars. Each bar spans [prev, t] and is labelled by the
-  // mark's name — so e.g. "invoke-end" shows the cost of the invoke phase,
-  // not the instant it happened.
-  type Phase = { name: string; start: number; end: number; width: number };
-  const phases = $derived<Phase[]>((() => {
-    if (!trace) return [];
-    const out: Phase[] = [];
-    let prev = 0;
-    const total = trace.durationMs ?? trace.marks.at(-1)?.t ?? 1;
-    for (const m of trace.marks) {
-      out.push({
-        name: m.name,
-        start: prev,
-        end: m.t,
-        width: Math.max(0.5, ((m.t - prev) / total) * 100),
-      });
-      prev = m.t;
-    }
-    return out;
-  })());
-
-  function fmt(n: number): string {
-    return n < 10 ? n.toFixed(1) : n.toFixed(0);
-  }
-</script>
-
-{#if enabled && trace}
-  <div class="perf" role="status" aria-live="polite">
-    <div class="perf__head">
-      <span class="perf__label">{trace.label}</span>
-      <span class="perf__total">
-        {#if trace.durationMs != null}
-          {fmt(trace.durationMs)}ms
-        {:else}
-          running…
-        {/if}
-      </span>
-    </div>
-    <div class="perf__bar">
-      {#each phases as p (p.name + p.start)}
-        <div
-          class="perf__phase"
-          style="width:{p.width}%"
-          title="{p.name}: {fmt(p.end - p.start)}ms"
-        >
-          <span class="perf__phase-name">{p.name}</span>
-          <span class="perf__phase-t">{fmt(p.end - p.start)}</span>
-        </div>
-      {/each}
-    </div>
-    <details class="perf__detail">
-      <summary>marks</summary>
-      <table>
-        <thead>
-          <tr><th>mark</th><th>at</th><th>Δ</th></tr>
-        </thead>
-        <tbody>
-          {#each phases as p (p.name + p.start)}
-            <tr>
-              <td>{p.name}</td>
-              <td>{fmt(p.end)}</td>
-              <td>+{fmt(p.end - p.start)}</td>
-            </tr>
-          {/each}
-        </tbody>
-      </table>
-    </details>
-  </div>
-{/if}
-
-<style>
-  .perf {
-    position: fixed;
-    right: 12px;
-    bottom: 12px;
-    z-index: 9999;
-    min-width: 340px;
-    max-width: 560px;
-    padding: 8px 10px;
-    background: rgba(20, 20, 22, 0.92);
-    color: #f4f0e8;
-    border-radius: 6px;
-    border: 1px solid rgba(255, 255, 255, 0.1);
-    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
-    font-size: 11px;
-    line-height: 1.35;
-    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
-    pointer-events: auto;
-  }
-  .perf__head {
-    display: flex;
-    align-items: baseline;
-    justify-content: space-between;
-    gap: 10px;
-    margin-bottom: 6px;
-  }
-  .perf__label { font-weight: 600; }
-  .perf__total {
-    font-variant-numeric: tabular-nums;
-    color: #f4c078;
-  }
-  .perf__bar {
-    display: flex;
-    height: 18px;
-    border-radius: 3px;
-    overflow: hidden;
-    background: rgba(255, 255, 255, 0.06);
-  }
-  .perf__phase {
-    position: relative;
-    overflow: hidden;
-    padding: 0 4px;
-    display: flex;
-    align-items: center;
-    gap: 4px;
-    font-size: 10px;
-    line-height: 1;
-    white-space: nowrap;
-    border-right: 1px solid rgba(0, 0, 0, 0.3);
-    color: #1d1d1f;
-  }
-  .perf__phase:nth-child(6n + 1) { background: #f4c078; }
-  .perf__phase:nth-child(6n + 2) { background: #a4c4a0; }
-  .perf__phase:nth-child(6n + 3) { background: #c48aa8; }
-  .perf__phase:nth-child(6n + 4) { background: #88b4c0; }
-  .perf__phase:nth-child(6n + 5) { background: #e0b070; }
-  .perf__phase:nth-child(6n)     { background: #b8a078; }
-  .perf__phase-name { font-weight: 600; }
-  .perf__phase-t {
-    font-variant-numeric: tabular-nums;
-    opacity: 0.85;
-  }
-  .perf__detail {
-    margin-top: 6px;
-    opacity: 0.8;
-  }
-  .perf__detail summary {
-    cursor: pointer;
-    text-transform: uppercase;
-    letter-spacing: 0.08em;
-    font-size: 10px;
-  }
-  .perf__detail table {
-    width: 100%;
-    margin-top: 4px;
-    border-collapse: collapse;
-  }
-  .perf__detail th,
-  .perf__detail td {
-    padding: 2px 6px 2px 0;
-    text-align: left;
-    font-variant-numeric: tabular-nums;
-  }
-  .perf__detail th {
-    opacity: 0.6;
-    font-weight: normal;
-  }
-</style>
diff --git a/crates/toolpath-desktop/frontend/src/lib/SourceLogo.svelte b/crates/toolpath-desktop/frontend/src/lib/SourceLogo.svelte
deleted file mode 100644
index 570abad..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/SourceLogo.svelte
+++ /dev/null
@@ -1,33 +0,0 @@
-<script lang="ts">
-  // Brand marks for the four source types. Paths from simple-icons (MIT/CC0)
-  // where applicable; Claude uses Anthropic's 8-point burst mark; Pi uses a
-  // styled π glyph since pi.dev doesn't publish a simple-icons entry.
-  interface Props {
-    kind: "claude" | "pi" | "git" | "github";
-    size?: number;
-    color?: string;
-  }
-  let { kind, size = 16, color = "currentColor" }: Props = $props();
-</script>
-
-{#if kind === "github"}
-  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width={size} height={size} fill={color} aria-label="GitHub">
-    <path d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"/>
-  </svg>
-{:else if kind === "git"}
-  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width={size} height={size} fill={color} aria-label="Git">
-    <path d="M23.546 10.93L13.067.452c-.604-.603-1.582-.603-2.188 0L8.708 2.627l2.76 2.76c.645-.215 1.379-.07 1.889.441.516.515.658 1.258.438 1.9l2.658 2.66c.645-.223 1.387-.078 1.9.435.721.72.721 1.884 0 2.604-.719.719-1.881.719-2.6 0-.539-.541-.674-1.337-.404-1.996L12.86 8.955v6.525c.176.086.342.203.488.348.713.721.713 1.883 0 2.6-.719.721-1.889.721-2.609 0-.719-.719-.719-1.879 0-2.598.182-.18.387-.316.605-.406V8.835c-.217-.091-.424-.222-.6-.401-.545-.545-.676-1.342-.396-2.009L7.636 3.7.45 10.881c-.6.605-.6 1.584 0 2.189l10.48 10.477c.604.604 1.582.604 2.186 0l10.43-10.43c.605-.603.605-1.582 0-2.187"/>
-  </svg>
-{:else if kind === "claude"}
-  <!-- Anthropic "A" mark (simple-icons: anthropic). Used for Claude Code. -->
-  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width={size} height={size} fill={color} aria-label="Claude (Anthropic)">
-    <path d="M17.3041 3.541h-3.6718l6.696 16.918H24Zm-10.6082 0L0 20.459h3.7442l1.3693-3.5527h7.0052l1.3693 3.5527h3.7442L10.5363 3.541Zm-.3712 10.2232 2.2909-5.9502 2.2909 5.9502Z"/>
-  </svg>
-{:else if kind === "pi"}
-  <!-- pi.dev — bold π glyph in a squared frame. -->
-  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width={size} height={size} aria-label="Pi.dev">
-    <rect x="1.5" y="1.5" width="21" height="21" rx="3" fill="none" stroke={color} stroke-width="1.8"/>
-    <path d="M6.5 9.5 h11 M9 9.5 v8 c0 1 -.5 1.5 -1.5 1.5 M15 9.5 v7.5 c0 1.2 .6 2 1.8 2"
-          fill="none" stroke={color} stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
-  </svg>
-{/if}
diff --git a/crates/toolpath-desktop/frontend/src/lib/StepTree.svelte b/crates/toolpath-desktop/frontend/src/lib/StepTree.svelte
deleted file mode 100644
index 4e8560b..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/StepTree.svelte
+++ /dev/null
@@ -1,129 +0,0 @@
-<script lang="ts">
-  // Searchable step-tree sidebar for the Preview route. DFS-ordered list of
-  // every step in the derived document, with ├─/└─ tree connectors, actor-
-  // coloured names, and HEAD/dead-end markers. Mirrors the index.html
-  // prototype that the design was iterated against.
-
-  import { store } from "./store.svelte";
-  import { buildTree, matchesFilter, type FlatNode } from "./tree";
-  import type { TreeFilter } from "./types";
-
-  const FILTERS: { key: TreeFilter; label: string }[] = [
-    { key: "all",  label: "all" },
-    { key: "head", label: "on HEAD" },
-    { key: "dead", label: "dead ends" },
-  ];
-
-  const preview = $derived(store.m.preview);
-  const doc = $derived(preview?.doc ?? null);
-  const built = $derived(doc ? buildTree(doc) : null);
-  const query = $derived((preview?.treeQuery ?? "").trim().toLowerCase());
-  const filter = $derived<TreeFilter>(preview?.treeFilter ?? "all");
-  const rows = $derived<FlatNode[]>(
-    built ? built.nodes.filter((n) => matchesFilter(n, query, filter)) : [],
-  );
-  const selectedId = $derived(preview?.selectedStep?.step.id ?? null);
-
-  function shortId(id: string): string {
-    // Derived IDs from Claude/Pi/etc are UUIDs (~36 chars). Keep them
-    // compact in the tree; the full id is available via the title tooltip.
-    return id.length > 10 ? id.slice(0, 8) + "…" : id;
-  }
-
-  function onRowClick(node: FlatNode) {
-    if (!built || !preview) return;
-    const step = built.norm.stepMap.get(node.id);
-    if (!step) return;
-    // If the target is a dead node, auto-expand its HEAD-ancestor branch so
-    // the graph reveals it when the user looks over.
-    if (!node.onHead) {
-      let cursor: string | undefined = node.id;
-      let ancestor: string | undefined;
-      while (cursor) {
-        const parents: string[] = built.norm.stepMap.get(cursor)?.step.parents ?? [];
-        const p: string | undefined = parents[0];
-        if (!p) break;
-        if (built.norm.headSet.has(p)) { ancestor = p; break; }
-        cursor = p;
-      }
-      if (ancestor && !preview.expandedBranches[ancestor]) {
-        store.dispatch({ t: "PreviewToggleBranch", nodeId: ancestor });
-      }
-    }
-    store.dispatch({ t: "PreviewSelectStep", step, actors: built.norm.actors });
-  }
-</script>
-
-{#if preview && built}
-  {@const total = built.nodes.length}
-  {@const onHead = built.nodes.filter((n) => n.onHead).length}
-  <div class="step-tree">
-    <div class="step-tree__head">
-      <div class="step-tree__title">{preview.filename}</div>
-      <div class="step-tree__sub">
-        {total} step{total === 1 ? "" : "s"} · {onHead} on HEAD
-        {#if built.norm.head}· head <code>{built.norm.head}</code>{/if}
-      </div>
-    </div>
-    <div class="step-tree__controls">
-      <input
-        class="step-tree__search"
-        type="search"
-        placeholder="search steps…"
-        value={preview.treeQuery}
-        oninput={(e: Event) =>
-          store.dispatch({ t: "PreviewSetTreeQuery", value: (e.currentTarget as HTMLInputElement).value })}
-      />
-    </div>
-    <div class="step-tree__filters" role="tablist">
-      {#each FILTERS as f (f.key)}
-        <button
-          class={"step-tree__filter-btn" + (filter === f.key ? " step-tree__filter-btn--active" : "")}
-          role="tab"
-          aria-selected={filter === f.key}
-          onclick={() => store.dispatch({ t: "PreviewSetTreeFilter", value: f.key })}
-        >{f.label}</button>
-      {/each}
-    </div>
-    <div class="step-tree__rows">
-      {#if rows.length === 0}
-        <div class="step-tree__empty">
-          {query || filter !== "all" ? "No steps match." : "No steps in this document."}
-        </div>
-      {:else}
-        {#each rows as node (node.id)}
-          {@const isSelected = node.id === selectedId}
-          <button
-            type="button"
-            class={
-              "step-tree__row step-tree__row--role-" + node.actorKind
-              + (node.onHead ? " step-tree__row--on-head" : " step-tree__row--off-head")
-              + (isSelected ? " step-tree__row--active" : "")
-            }
-            onclick={() => onRowClick(node)}
-          >
-            <span class="step-tree__prefix">{node.prefix}</span>
-            <span
-              class={
-                "step-tree__marker "
-                + (node.isHead ? "step-tree__marker--head"
-                  : node.isDead ? "step-tree__marker--dead"
-                  : "step-tree__marker--on")
-              }
-            >{node.isHead ? "★" : node.isDead ? "⌀" : "●"}</span>
-            <span class="step-tree__id" title={node.id}>{shortId(node.id)}</span>
-            <span class="step-tree__actor">{node.actorDisplay}</span>
-            {#if node.intent}
-              <span class="step-tree__intent">· {node.intent}</span>
-            {/if}
-          </button>
-        {/each}
-      {/if}
-    </div>
-    <div class="step-tree__legend">
-      <span><span style="color:var(--contour-2)">★</span> HEAD</span>
-      <span><span style="color:var(--ink-4)">●</span> on HEAD</span>
-      <span><span style="color:var(--road)">⌀</span> dead end</span>
-    </div>
-  </div>
-{/if}
diff --git a/crates/toolpath-desktop/frontend/src/lib/__bench__/preview.bench.ts b/crates/toolpath-desktop/frontend/src/lib/__bench__/preview.bench.ts
deleted file mode 100644
index ade6c6c..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/__bench__/preview.bench.ts
+++ /dev/null
@@ -1,181 +0,0 @@
-// Bench script for the Preview's pure-TS hot paths (issue #41).
-//
-// Runs against the synthetic fixtures generated by
-// `cargo run -p toolpath-cli --bin gen_synthetic_path`. Prints median /
-// p95 / max over N iterations per (size × operation) cell. Intended for
-// tracking wins from #38 (markdown memo) and #39 (buildTree deps narrow).
-//
-// Usage (from `crates/toolpath-desktop/frontend`):
-//
-//   bun run bench                       # default: all sizes it can find
-//   bun run src/lib/__bench__/preview.bench.ts --fixture ../../../bench/fixtures/synthetic-10k.path.json
-//
-// No external deps — just `performance.now()` and the modules under test.
-// Render-time + memory measurements are the Tauri side and live in
-// `BENCHMARKS.md` as a manual procedure.
-
-import { readFileSync } from "node:fs";
-import { resolve, dirname } from "node:path";
-import { fileURLToPath } from "node:url";
-
-import { classify } from "../classify";
-import { buildTree, flattenChatHead, matchesFilter } from "../tree";
-import { normalize } from "../viz";
-import type { Document } from "../types";
-
-const ITERATIONS_PER_OP = 10;
-const KEYSTROKE_QUERIES = ["step", "step-0", "agent", "claude", "bench", "xyz"];
-
-interface Stats {
-  n: number;
-  median: number;
-  p95: number;
-  max: number;
-  mean: number;
-}
-
-function stats(samples: number[]): Stats {
-  const sorted = [...samples].sort((a, b) => a - b);
-  const n = sorted.length;
-  const median = sorted[Math.floor(n / 2)];
-  const p95 = sorted[Math.min(n - 1, Math.floor(n * 0.95))];
-  const max = sorted[n - 1];
-  const mean = sorted.reduce((a, b) => a + b, 0) / n;
-  return { n, median, p95, max, mean };
-}
-
-function fmt(ms: number): string {
-  if (ms < 1) return `${(ms * 1000).toFixed(0)}us`;
-  if (ms < 100) return `${ms.toFixed(2)}ms`;
-  return `${ms.toFixed(1)}ms`;
-}
-
-function printRow(label: string, s: Stats): void {
-  console.log(
-    `  ${label.padEnd(36)}` +
-      `median=${fmt(s.median).padStart(8)}  ` +
-      `p95=${fmt(s.p95).padStart(8)}  ` +
-      `max=${fmt(s.max).padStart(8)}  ` +
-      `mean=${fmt(s.mean).padStart(8)}  (n=${s.n})`,
-  );
-}
-
-function time<T>(fn: () => T): [number, T] {
-  const t0 = performance.now();
-  const out = fn();
-  const t1 = performance.now();
-  return [t1 - t0, out];
-}
-
-function benchFixture(fixturePath: string): void {
-  const raw = readFileSync(fixturePath, "utf8");
-  const parseStart = performance.now();
-  const doc = JSON.parse(raw) as Document;
-  const parseMs = performance.now() - parseStart;
-
-  const stepCount =
-    "Path" in doc ? doc.Path.steps.length
-    : "Graph" in doc ? doc.Graph.paths.flatMap((p) => ("$ref" in p ? [] : p.steps)).length
-    : "Step" in doc ? 1
-    : 0;
-
-  console.log("");
-  console.log(`── ${fixturePath} (${stepCount} steps, ${raw.length.toLocaleString()} bytes)`);
-  console.log(`  JSON.parse:                         ${fmt(parseMs)}`);
-
-  // normalize
-  const normSamples: number[] = [];
-  for (let i = 0; i < ITERATIONS_PER_OP; i++) {
-    const [ms] = time(() => normalize(doc));
-    normSamples.push(ms);
-  }
-  printRow("normalize(doc)", stats(normSamples));
-
-  // buildTree (normalize + flattenTree)
-  const buildSamples: number[] = [];
-  for (let i = 0; i < ITERATIONS_PER_OP; i++) {
-    const [ms] = time(() => buildTree(doc));
-    buildSamples.push(ms);
-  }
-  printRow("buildTree(doc)", stats(buildSamples));
-
-  // Warm a tree once for keystroke + classify benches.
-  const { nodes, norm } = buildTree(doc);
-
-  // matchesFilter — per-keystroke simulation over all nodes, "all" filter.
-  const keystrokeSamples: number[] = [];
-  for (let i = 0; i < ITERATIONS_PER_OP; i++) {
-    const q = KEYSTROKE_QUERIES[i % KEYSTROKE_QUERIES.length];
-    const [ms] = time(() => nodes.filter((n) => matchesFilter(n, q, "all")));
-    keystrokeSamples.push(ms);
-  }
-  printRow("filter(matchesFilter) per keystroke", stats(keystrokeSamples));
-
-  // flattenChatHead — HEAD-chain walk used by the transcript view.
-  const chatSamples: number[] = [];
-  for (let i = 0; i < ITERATIONS_PER_OP; i++) {
-    const [ms] = time(() => flattenChatHead(norm));
-    chatSamples.push(ms);
-  }
-  printRow("flattenChatHead(norm)", stats(chatSamples));
-
-  // classify — per-step metadata extraction, run across every step.
-  const classifySamples: number[] = [];
-  for (let i = 0; i < ITERATIONS_PER_OP; i++) {
-    const [ms] = time(() => {
-      for (const s of norm.steps) classify(s);
-    });
-    classifySamples.push(ms);
-  }
-  printRow("classify × all steps", stats(classifySamples));
-}
-
-// ── Entry point ──────────────────────────────────────────────────────────
-
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = dirname(__filename);
-const repoRoot = resolve(__dirname, "../../../../../..");
-
-function defaultFixtures(): string[] {
-  return [
-    "bench/fixtures/synthetic-1k.path.json",
-    "bench/fixtures/synthetic-5k.path.json",
-    "bench/fixtures/synthetic-10k.path.json",
-  ]
-    .map((p) => resolve(repoRoot, p))
-    .filter((p) => {
-      try {
-        readFileSync(p);
-        return true;
-      } catch {
-        return false;
-      }
-    });
-}
-
-function main(): void {
-  const argv = process.argv.slice(2);
-  const fixtureArgIdx = argv.indexOf("--fixture");
-  const fixtures =
-    fixtureArgIdx >= 0 && argv[fixtureArgIdx + 1]
-      ? [resolve(process.cwd(), argv[fixtureArgIdx + 1])]
-      : defaultFixtures();
-
-  if (fixtures.length === 0) {
-    console.error(
-      "No fixtures found. Generate them first:\n" +
-        "  cargo run -p toolpath-cli --bin gen_synthetic_path -- --steps 1000 --out bench/fixtures/synthetic-1k.path.json\n" +
-        "  cargo run -p toolpath-cli --bin gen_synthetic_path -- --steps 5000 --out bench/fixtures/synthetic-5k.path.json\n" +
-        "  cargo run -p toolpath-cli --bin gen_synthetic_path -- --steps 10000 --out bench/fixtures/synthetic-10k.path.json\n",
-    );
-    process.exit(1);
-  }
-
-  console.log(`Preview bench — ${ITERATIONS_PER_OP} iterations per op`);
-  console.log(`Node/Bun: ${process.version ?? "unknown"}`);
-
-  for (const f of fixtures) benchFixture(f);
-  console.log("");
-}
-
-main();
diff --git a/crates/toolpath-desktop/frontend/src/lib/__tests__/classify.test.ts b/crates/toolpath-desktop/frontend/src/lib/__tests__/classify.test.ts
deleted file mode 100644
index 1806e88..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/__tests__/classify.test.ts
+++ /dev/null
@@ -1,63 +0,0 @@
-import { describe, expect, it } from "vitest";
-import { classify, readStructural } from "../classify";
-import type { StepRef } from "../types";
-
-// Minimal StepRef fixture — only the fields classify/readStructural read.
-// `structural` is the flattened wire shape (see StructuralChange in Rust:
-// `#[serde(rename = "type")]` on the tag + `#[serde(flatten)]` on extra).
-function stepWith(structural: Record<string, unknown>): StepRef {
-  return {
-    step: { id: "s", actor: "agent:claude-code" },
-    change: { "convo://turn": { structural } },
-  };
-}
-
-describe("classify", () => {
-  it("returns 'user' for a conversation.append with role=user", () => {
-    const s = stepWith({ type: "conversation.append", role: "user", text: "hi" });
-    expect(classify(s).kind).toBe("user");
-  });
-
-  it("returns 'assistant' for a conversation.append with role=assistant", () => {
-    const s = stepWith({
-      type: "conversation.append",
-      role: "assistant",
-      text: "hello",
-    });
-    expect(classify(s).kind).toBe("assistant");
-  });
-
-  it("returns 'tool' for tool.invoke", () => {
-    const s = stepWith({ type: "tool.invoke", name: "Edit" });
-    const c = classify(s);
-    expect(c.kind).toBe("tool");
-    expect(c.toolName).toBe("Edit");
-  });
-
-  it("returns 'system' for unknown types", () => {
-    const s = stepWith({ type: "conversation.init", model: "claude-opus-4-7" });
-    expect(classify(s).kind).toBe("system");
-  });
-});
-
-describe("readStructural", () => {
-  it("prefers a tool.invoke payload over a non-conversation sibling artifact", () => {
-    // Claude multi-artifact case: a tool.invoke step also writes a file
-    // artifact whose `structural` is something unrelated (not in the
-    // CONVERSATION_TYPES set). readStructural should pick the tool.invoke.
-    const step: StepRef = {
-      step: { id: "s", actor: "agent:claude-code" },
-      change: {
-        "file:///tmp/out.txt": {
-          structural: { type: "file.write", bytes: 42 },
-        },
-        "tool://Edit": {
-          structural: { type: "tool.invoke", name: "Edit" },
-        },
-      },
-    };
-    const s = readStructural(step);
-    expect(s?.type).toBe("tool.invoke");
-    expect(s?.name).toBe("Edit");
-  });
-});
diff --git a/crates/toolpath-desktop/frontend/src/lib/__tests__/tree.test.ts b/crates/toolpath-desktop/frontend/src/lib/__tests__/tree.test.ts
deleted file mode 100644
index 4b2b953..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/__tests__/tree.test.ts
+++ /dev/null
@@ -1,119 +0,0 @@
-import { describe, expect, it } from "vitest";
-import { flattenChatHead } from "../tree";
-import type { Document, StepRef } from "../types";
-import { normalize } from "../viz";
-
-// ── Step fixture helpers ───────────────────────────────────────────────
-
-function userStep(id: string, parent: string | null, text: string): StepRef {
-  return {
-    step: { id, actor: "human:alex", parents: parent ? [parent] : [] },
-    change: {
-      "convo://turn": {
-        structural: { type: "conversation.append", role: "user", text },
-      },
-    },
-  };
-}
-
-function assistantStep(id: string, parent: string, text: string): StepRef {
-  return {
-    step: { id, actor: "agent:claude-code", parents: [parent] },
-    change: {
-      "convo://turn": {
-        structural: { type: "conversation.append", role: "assistant", text },
-      },
-    },
-  };
-}
-
-function toolStep(id: string, parent: string, name: string): StepRef {
-  return {
-    step: { id, actor: "agent:claude-code", parents: [parent] },
-    change: {
-      "tool://invoke": {
-        structural: { type: "tool.invoke", name },
-      },
-    },
-  };
-}
-
-function pathDoc(head: string, steps: StepRef[]): Document {
-  return {
-    Path: {
-      path: { id: "p", head },
-      steps,
-    },
-  };
-}
-
-// ── Tests ──────────────────────────────────────────────────────────────
-
-describe("flattenChatHead", () => {
-  it("linearises a user → assistant → user → assistant chain in order", () => {
-    const steps = [
-      userStep("s1", null, "hi"),
-      assistantStep("s2", "s1", "hello"),
-      userStep("s3", "s2", "how are you"),
-      assistantStep("s4", "s3", "good"),
-    ];
-    const turns = flattenChatHead(normalize(pathDoc("s4", steps)));
-    expect(turns.map((t) => t.id)).toEqual(["s1", "s2", "s3", "s4"]);
-    expect(turns.map((t) => t.kind)).toEqual([
-      "user",
-      "assistant",
-      "user",
-      "assistant",
-    ]);
-  });
-
-  it("attaches a tool.invoke sibling child to its assistant parent", () => {
-    // s2 (assistant) has two children: s3 (tool.invoke sibling, not on HEAD)
-    // and s4 (next user turn, on HEAD). head = s4.
-    const steps = [
-      userStep("s1", null, "hi"),
-      assistantStep("s2", "s1", "ok"),
-      toolStep("s3", "s2", "Edit"),
-      userStep("s4", "s2", "thanks"),
-    ];
-    const turns = flattenChatHead(normalize(pathDoc("s4", steps)));
-    const s2 = turns.find((t) => t.id === "s2")!;
-    expect(s2.toolInvocations.map((t) => t.id)).toEqual(["s3"]);
-    expect(s2.toolInvocations[0].toolName).toBe("Edit");
-    // s3 should not appear as its own top-level turn.
-    expect(turns.map((t) => t.id)).toEqual(["s1", "s2", "s4"]);
-  });
-
-  it("ignores sibling children that aren't tool.invoke", () => {
-    const steps = [
-      userStep("s1", null, "hi"),
-      assistantStep("s2", "s1", "ok"),
-      // sibling child that's a user turn, not a tool.invoke
-      userStep("s3", "s2", "detour"),
-      userStep("s4", "s2", "thanks"),
-    ];
-    const turns = flattenChatHead(normalize(pathDoc("s4", steps)));
-    const s2 = turns.find((t) => t.id === "s2")!;
-    expect(s2.toolInvocations).toEqual([]);
-  });
-
-  it("falls back to the full step list for a bare Step doc (no head)", () => {
-    const doc: Document = {
-      Step: userStep("solo", null, "hi") as StepRef & {
-        meta?: { actors?: Record<string, never> };
-      },
-    };
-    const turns = flattenChatHead(normalize(doc));
-    expect(turns.map((t) => t.id)).toEqual(["solo"]);
-  });
-
-  it("falls back to the full step list when head is detached (not in stepMap)", () => {
-    const steps = [
-      userStep("s1", null, "hi"),
-      assistantStep("s2", "s1", "ok"),
-    ];
-    // head points to a non-existent step.
-    const turns = flattenChatHead(normalize(pathDoc("missing", steps)));
-    expect(turns.map((t) => t.id)).toEqual(["s1", "s2"]);
-  });
-});
diff --git a/crates/toolpath-desktop/frontend/src/lib/classify.ts b/crates/toolpath-desktop/frontend/src/lib/classify.ts
deleted file mode 100644
index 00b625e..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/classify.ts
+++ /dev/null
@@ -1,84 +0,0 @@
-// Step-level classification shared by the chat transcript and the graph
-// card renderer. Reads the `structural` payload of a step's change entries
-// and extracts role / text / tool metadata.
-//
-// Keep in sync with `crates/toolpath/src/types.rs::StructuralChange`:
-//   - `change_type` is `#[serde(rename = "type")]`
-//   - `extra: HashMap<String, Value>` is `#[serde(flatten)]`
-// so on the wire the payload is a flat object like
-// `{ type: "conversation.append", role: "assistant", text: "...", ... }`.
-
-import type { StepRef } from "./types";
-
-export type ChatTurnKind =
-  | "user"        // conversation.append, role=user
-  | "assistant"   // conversation.append, role=assistant
-  | "tool"        // tool.invoke
-  | "system"      // conversation.init / conversation.event / anything else
-  ;
-
-export type StructuralPayload = Record<string, unknown> & { type?: string };
-
-const CONVERSATION_TYPES = new Set([
-  "conversation.append",
-  "conversation.init",
-  "conversation.event",
-  "tool.invoke",
-]);
-
-/**
- * Pick the best `structural` payload from a step's change map — prefer
- * one whose `type` is a known conversation variant so that (e.g.) a tool
- * file artifact doesn't shadow the conversation payload.
- */
-export function readStructural(step: StepRef): StructuralPayload | null {
-  if (!step.change) return null;
-  const candidates: StructuralPayload[] = [];
-  for (const key of Object.keys(step.change)) {
-    const s = step.change[key]?.structural as StructuralPayload | undefined;
-    if (s && typeof s === "object") candidates.push(s);
-  }
-  if (candidates.length === 0) return null;
-  return (
-    candidates.find((c) => typeof c.type === "string" && CONVERSATION_TYPES.has(c.type))
-    ?? candidates[0]
-  );
-}
-
-function asString(v: unknown): string | null {
-  return typeof v === "string" && v.length ? v : null;
-}
-
-function asStringArray(v: unknown): string[] {
-  if (!Array.isArray(v)) return [];
-  return v.filter((x): x is string => typeof x === "string");
-}
-
-export interface Classified {
-  kind: ChatTurnKind;
-  text: string | null;
-  toolNames: string[];
-  thinking: string | null;
-  model: string | null;
-  toolName: string | null;
-}
-
-export function classify(step: StepRef): Classified {
-  const s = readStructural(step) ?? {};
-  const ct = typeof s.type === "string" ? s.type : "";
-  const role = asString(s["role"]);
-  const text = asString(s["text"]);
-  const thinking = asString(s["thinking"]);
-  const toolNames = asStringArray(s["tool_uses"]);
-  const model = asString(s["model"]);
-  const toolName = asString(s["name"]);
-
-  let kind: ChatTurnKind;
-  if (ct === "tool.invoke") kind = "tool";
-  else if (ct === "conversation.append") {
-    kind = role === "user" ? "user" : "assistant";
-  } else {
-    kind = "system";
-  }
-  return { kind, text, toolNames, thinking, model, toolName };
-}
diff --git a/crates/toolpath-desktop/frontend/src/lib/debug.ts b/crates/toolpath-desktop/frontend/src/lib/debug.ts
deleted file mode 100644
index 853e04a..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/debug.ts
+++ /dev/null
@@ -1,54 +0,0 @@
-// Lightweight debug-log helper.
-//
-// `dbg("msg", name, payload)` prints a timestamped, colour-coded line to the
-// webview devtools console. Category is a string tag (`msg`, `route`,
-// `invoke`, `invoke.ok`, `invoke.err`, `event`, ...). Disable all output by
-// setting `localStorage.debug = "0"` or `false`; default is on in dev.
-//
-// Pretty-prints non-trivial payloads as expandable objects rather than
-// stringifying them, so the devtools inspector stays useful.
-
-const COLOURS: Record<string, string> = {
-  msg: "#b5652b",
-  route: "#3a7e3a",
-  invoke: "#5b7bc4",
-  "invoke.ok": "#3a7e3a",
-  "invoke.err": "#c44030",
-  event: "#8a5a9a",
-  default: "#8a8078",
-};
-
-function enabled(): boolean {
-  try {
-    const v = globalThis.localStorage?.getItem("debug");
-    return v !== "0" && v !== "false";
-  } catch {
-    return true;
-  }
-}
-
-function ts(): string {
-  const d = new Date();
-  return (
-    String(d.getHours()).padStart(2, "0") +
-    ":" +
-    String(d.getMinutes()).padStart(2, "0") +
-    ":" +
-    String(d.getSeconds()).padStart(2, "0") +
-    "." +
-    String(d.getMilliseconds()).padStart(3, "0")
-  );
-}
-
-export function dbg(category: string, label: string, ...rest: unknown[]): void {
-  if (!enabled()) return;
-  const colour = COLOURS[category] ?? COLOURS.default;
-  // eslint-disable-next-line no-console
-  console.log(
-    `%c${ts()} %c${category}%c ${label}`,
-    "color:#8a8078;font-family:monospace",
-    `color:${colour};font-weight:600;font-family:monospace`,
-    "color:inherit;font-family:monospace",
-    ...rest,
-  );
-}
diff --git a/crates/toolpath-desktop/frontend/src/lib/ipc.ts b/crates/toolpath-desktop/frontend/src/lib/ipc.ts
deleted file mode 100644
index 60944fc..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/ipc.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-// Tauri IPC bridge wrappers, typed.
-//
-// `invoke` is a thin typed wrapper around `@tauri-apps/api/core`. Rust
-// commands are snake_case; Tauri converts camelCase JS args to snake_case
-// Rust params.
-
-import { invoke as tauriInvoke } from "@tauri-apps/api/core";
-import { listen as tauriListen, type UnlistenFn } from "@tauri-apps/api/event";
-import { dbg } from "./debug";
-
-export function invoke<T = unknown>(
-  cmd: string,
-  args?: Record<string, unknown>,
-): Promise<T> {
-  return tauriInvoke<T>(cmd, args);
-}
-
-/**
- * Subscribe to a Tauri backend event. Returns a promise of the unlisten
- * function so `$effect` can clean up automatically. Every received event is
- * logged via `dbg("event", name, payload)`.
- */
-export function listen<T = unknown>(
-  event: string,
-  handler: (payload: T) => void,
-): Promise<UnlistenFn> {
-  dbg("event", event + " (subscribed)");
-  return tauriListen<T>(event, (ev) => {
-    dbg("event", event, ev.payload);
-    handler(ev.payload as T);
-  });
-}
diff --git a/crates/toolpath-desktop/frontend/src/lib/markdown.ts b/crates/toolpath-desktop/frontend/src/lib/markdown.ts
deleted file mode 100644
index c8d6775..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/markdown.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-// Minimal markdown → sanitized HTML renderer for chat bodies. Pipes
-// `marked` through DOMPurify so raw `<script>` / event-handler attributes
-// smuggled into Claude output can't execute in the Tauri webview.
-//
-// Configured with GitHub-style linebreaks (single-newline → `<br>`) so
-// terse chat messages read naturally without blank lines between them.
-
-import DOMPurify from "dompurify";
-import { marked } from "marked";
-
-marked.setOptions({
-  gfm: true,
-  breaks: true,
-});
-
-export function renderMarkdown(src: string | null | undefined): string {
-  if (!src) return "";
-  const html = marked.parse(src, { async: false }) as string;
-  return DOMPurify.sanitize(html, { USE_PROFILES: { html: true } });
-}
diff --git a/crates/toolpath-desktop/frontend/src/lib/perf.svelte.ts b/crates/toolpath-desktop/frontend/src/lib/perf.svelte.ts
deleted file mode 100644
index 7c5b235..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/perf.svelte.ts
+++ /dev/null
@@ -1,105 +0,0 @@
-// Lightweight performance tracer for click → derive → render flows.
-//
-// Each logical operation (e.g. "derive claude session") has a single running
-// trace with one or more named marks. The most-recently-completed trace lives
-// in the reactive `perf.latest` field so a small overlay can visualise which
-// phase took how long. Every completed trace is also dumped to the devtools
-// console.
-//
-// Enable the on-screen overlay by calling `perfSetOverlayEnabled(true)` (or
-// `localStorage.setItem("perf", "1")`) and reloading. Console output is
-// always on.
-//
-// Typical call sequence for a "click Select → preview mounted" flow:
-//
-//   perf.start("derive claude");
-//   perf.mark("dispatch");
-//   perf.mark("invoke-start");
-//   perf.mark("invoke-end");
-//   perf.mark("model-updated");
-//   perf.mark("preview-mounted");
-//   perf.mark("viz-rendered");
-//   perf.end();
-
-export type PerfMark = { name: string; t: number };
-export type PerfTrace = {
-  label: string;
-  startedAt: number;
-  marks: PerfMark[];
-  durationMs: number | null;
-};
-
-// Reactive module-level state. Svelte 5 tracks reads of these fields across
-// .svelte files that import them.
-export const perf = $state<{ latest: PerfTrace | null }>({ latest: null });
-
-// Non-reactive scratch pad for the in-flight trace.
-let current: PerfTrace | null = null;
-
-function now(): number {
-  return typeof performance !== "undefined" ? performance.now() : Date.now();
-}
-
-// `perf.latest` is `$state`, so any assignment inside a Svelte `$derived`
-// (e.g. `perfMark` from within `buildTree` reached via a `$derived` in
-// ChatView) throws `state_unsafe_mutation`. Defer writes to a microtask so
-// the mutation always happens outside derivation. The visible ordering is
-// unchanged — multiple marks in one task resolve in order, last write wins.
-function publish(trace: PerfTrace): void {
-  const snapshot = { ...trace, marks: trace.marks };
-  queueMicrotask(() => {
-    perf.latest = snapshot;
-  });
-}
-
-export function perfStart(label: string): void {
-  const t = now();
-  current = { label, startedAt: t, marks: [], durationMs: null };
-  publish(current);
-}
-
-export function perfMark(name: string): void {
-  if (!current) return;
-  const t = now() - current.startedAt;
-  current.marks = [...current.marks, { name, t }];
-  publish(current);
-}
-
-export function perfEnd(): void {
-  if (!current) return;
-  const dur = now() - current.startedAt;
-  current.durationMs = dur;
-  publish(current);
-
-  // Summary to console. Each mark shows absolute-from-start and delta from
-  // the previous mark so the slow phase is easy to spot.
-  const lines: string[] = [`${current.label}  (total ${dur.toFixed(1)}ms)`];
-  let prev = 0;
-  for (const m of current.marks) {
-    const delta = m.t - prev;
-    lines.push(
-      `  ${m.name.padEnd(18)} ${m.t.toFixed(1).padStart(8)}ms  (+${delta.toFixed(1)}ms)`,
-    );
-    prev = m.t;
-  }
-  // eslint-disable-next-line no-console
-  console.log("%cperf", "color:#b5652b;font-weight:600", "\n" + lines.join("\n"));
-  current = null;
-}
-
-export function perfOverlayEnabled(): boolean {
-  try {
-    return globalThis.localStorage?.getItem("perf") === "1";
-  } catch {
-    return false;
-  }
-}
-
-export function perfSetOverlayEnabled(on: boolean): void {
-  try {
-    if (on) globalThis.localStorage?.setItem("perf", "1");
-    else globalThis.localStorage?.removeItem("perf");
-  } catch {
-    // ignore — overlay is a nice-to-have
-  }
-}
diff --git a/crates/toolpath-desktop/frontend/src/lib/store.svelte.ts b/crates/toolpath-desktop/frontend/src/lib/store.svelte.ts
deleted file mode 100644
index c1c325b..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/store.svelte.ts
+++ /dev/null
@@ -1,73 +0,0 @@
-// Reactive store wrapping the pure `update` reducer. Exposes a single
-// `store.m` proxy that Svelte components can read reactively, plus a
-// `dispatch` function.
-
-import type { Cmd, Dispatch, Model, Msg } from "./types";
-import { initialModel, update } from "./update";
-import { invoke } from "./ipc";
-import { dbg } from "./debug";
-import { perfStart, perfMark, perfEnd } from "./perf.svelte";
-
-class Store {
-  m = $state<Model>(initialModel());
-
-  dispatch: Dispatch = (msg: Msg) => {
-    dbg("msg", msg.t, msg);
-    // Perf: a derive-dispatch begins a new trace; `DeriveSucceeded` lands
-    // the model update that triggers the preview route to mount.
-    if (msg.t === "ClaudeDerive") perfStart("derive claude");
-    else if (msg.t === "PiDerive") perfStart("derive pi");
-    if (msg.t === "ClaudeDerive" || msg.t === "PiDerive") perfMark("dispatch");
-    if (msg.t === "DeriveSucceeded") perfMark("model-updated");
-    const [next, cmd] = update(msg, this.m);
-    const routeChanged = next.route !== this.m.route;
-    this.m = next;
-    if (routeChanged) dbg("route", next.route);
-    // Cmds run synchronously. For streaming flows where the backend emits
-    // events, the component owns the subscribe-then-invoke sequencing (see
-    // BrowseClaude / BrowsePi $effect blocks) so listeners are confirmed
-    // live before the invoke fires.
-    if (cmd) this.runCmd(cmd);
-  };
-
-  private runCmd(cmd: Cmd): void {
-    switch (cmd.type) {
-      case "batch":
-        for (const c of cmd.cmds) this.runCmd(c);
-        return;
-      case "emitMsg":
-        queueMicrotask(() => this.dispatch(cmd.msg));
-        return;
-      case "fn":
-        void cmd.run(this.dispatch);
-        return;
-      case "invoke":
-        dbg("invoke", cmd.name, cmd.args ?? {});
-        if (cmd.name === "derive_claude" || cmd.name === "derive_pi") {
-          perfMark("invoke-start");
-        }
-        invoke(cmd.name, cmd.args).then(
-          (r) => {
-            dbg("invoke.ok", cmd.name, r);
-            if (cmd.name === "derive_claude" || cmd.name === "derive_pi") {
-              perfMark("invoke-end");
-            }
-            const m = cmd.onOk?.(r);
-            if (m) this.dispatch(m);
-          },
-          (e) => {
-            dbg("invoke.err", cmd.name, e);
-            if (cmd.name === "derive_claude" || cmd.name === "derive_pi") {
-              perfMark("invoke-err");
-              perfEnd();
-            }
-            const m = cmd.onErr?.(e);
-            if (m) this.dispatch(m);
-          },
-        );
-        return;
-    }
-  }
-}
-
-export const store = new Store();
diff --git a/crates/toolpath-desktop/frontend/src/lib/tree.ts b/crates/toolpath-desktop/frontend/src/lib/tree.ts
deleted file mode 100644
index 279442b..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/tree.ts
+++ /dev/null
@@ -1,307 +0,0 @@
-// DFS flatten of a Toolpath Document into a sidebar-friendly tree, with
-// gutter bookkeeping so rows can render ascii tree connectors (`├─`, `└─`,
-// `│`). Reorders siblings so the HEAD-path child comes last — this keeps
-// the "live" branch visually anchored on the left/bottom rail.
-//
-// Also exposes `flattenChatHead(norm)`, a linear earliest→latest sequence
-// of the HEAD-path steps used by the chat/transcript view.
-
-import { classify, type ChatTurnKind } from "./classify";
-import { renderMarkdown } from "./markdown";
-import { perfMark } from "./perf.svelte";
-import type { StepRef, TreeFilter } from "./types";
-import { actorName, actorType, normalize, type Normalized } from "./viz";
-
-export type { ChatTurnKind };
-
-export interface FlatNode {
-  id: string;
-  depth: number;
-  /** One of "├─ ", "└─ ", or "" (root rows). */
-  prefix: string;
-  onHead: boolean;
-  isHead: boolean;
-  isDead: boolean;
-  actor: string;
-  actorDisplay: string;
-  actorKind: string;
-  intent: string;
-}
-
-export function flattenTree(norm: Normalized): FlatNode[] {
-  const { steps, head, actors, stepMap, childrenMap, headSet } = norm;
-
-  // Root set: any step whose parent is missing from the doc (or has none).
-  const hasParentInDoc = (id: string) => {
-    const s = stepMap.get(id);
-    const ps = s?.step.parents ?? [];
-    return ps.some((p) => stepMap.has(p));
-  };
-  const roots = steps.map((s) => s.step.id).filter((id) => !hasParentInDoc(id));
-
-  const reorder = (kids: string[]): string[] => {
-    // HEAD child last, so DFS visits dead branches first. Combined with the
-    // prototype's "last sibling inherits parent lane" convention, this also
-    // anchors the main/live branch on the rail.
-    const headKids: string[] = [];
-    const other: string[] = [];
-    for (const k of kids) (headSet.has(k) ? headKids : other).push(k);
-    return [...other, ...headKids];
-  };
-
-  const out: FlatNode[] = [];
-  const visit = (id: string, depth: number, gutters: boolean[], isLast: boolean) => {
-    const s = stepMap.get(id);
-    if (!s) return;
-    const prefix = buildPrefix(depth, gutters, isLast);
-    const onHead = headSet.has(id);
-    const isHead = id === head;
-    const kind = actorType(s.step.actor);
-    out.push({
-      id,
-      depth,
-      prefix,
-      onHead,
-      isHead,
-      isDead: !onHead,
-      actor: s.step.actor,
-      actorDisplay: actorName(s.step.actor, actors),
-      actorKind: kind,
-      intent: s.meta?.intent ?? "",
-    });
-    const kids = reorder(childrenMap.get(id) ?? []);
-    const nextGutters = [...gutters, !isLast];
-    kids.forEach((k, i) => visit(k, depth + 1, nextGutters, i === kids.length - 1));
-  };
-
-  const reorderedRoots = reorder(roots);
-  reorderedRoots.forEach((r, i) =>
-    visit(r, 0, [], i === reorderedRoots.length - 1),
-  );
-  return out;
-}
-
-function buildPrefix(depth: number, gutters: boolean[], isLast: boolean): string {
-  if (depth === 0) return "";
-  let s = "";
-  for (let lvl = 0; lvl < depth - 1; lvl++) {
-    s += gutters[lvl] ? "│  " : "   ";
-  }
-  s += isLast ? "└─ " : "├─ ";
-  return s;
-}
-
-export function matchesFilter(
-  node: FlatNode,
-  query: string,
-  filter: TreeFilter,
-): boolean {
-  if (filter === "head" && !node.onHead) return false;
-  if (filter === "dead" && node.onHead) return false;
-  if (query) {
-    const hay = `${node.id} ${node.actor} ${node.intent}`.toLowerCase();
-    if (!hay.includes(query)) return false;
-  }
-  return true;
-}
-
-/** Convenience: normalize + flatten in one call. */
-/**
- * `buildTree` is called from multiple `$derived` blocks (StepTree +
- * ChatView), so without memoisation the same doc gets normalised + flattened
- * twice on every preview open. Memo by doc identity — callers only ever pass
- * `store.m.preview.doc` which is a stable reference between re-renders. A
- * `WeakMap` keeps the cache GC-friendly: once the doc is replaced (new
- * derive) the old entry is collectable.
- */
-type BuiltTree = { norm: Normalized; nodes: FlatNode[] };
-const treeCache = new WeakMap<object, BuiltTree>();
-
-export function buildTree(
-  doc: Parameters<typeof normalize>[0],
-): BuiltTree {
-  // `doc` is a JSON object at the top level (Step/Path/Graph wrapper), so
-  // WeakMap can key on it directly.
-  const cached = treeCache.get(doc as object);
-  if (cached) {
-    perfMark(`buildTree cache-hit (${cached.norm.steps.length}st)`);
-    return cached;
-  }
-  const t0 = performance.now();
-  const norm = normalize(doc);
-  const tNorm = performance.now() - t0;
-  const nodes = flattenTree(norm);
-  const tTotal = performance.now() - t0;
-  perfMark(
-    `buildTree (${norm.steps.length}st ${tTotal.toFixed(0)}ms: norm ${tNorm.toFixed(0)} + flat ${(tTotal - tNorm).toFixed(0)})`,
-  );
-  const built = { norm, nodes };
-  treeCache.set(doc as object, built);
-  return built;
-}
-
-// ─── Chat / transcript view ──────────────────────────────────────────────
-
-export interface ChatTurn {
-  id: string;
-  step: StepRef;
-  actor: string;
-  actorDisplay: string;
-  actorKind: string;
-  intent: string;
-  timestamp: string | null;
-  isHead: boolean;
-  changeKeys: string[];
-  /** Derived from structural.change_type + extra.role. */
-  kind: ChatTurnKind;
-  /** User / assistant text (from change[k].structural.extra.text). */
-  text: string | null;
-  /** Sanitized markdown-rendered HTML for {@link text}. Precomputed at
-   *  flatten time so re-renders of the chat list (which happen on any
-   *  unrelated state change — filter typing, selection, view toggle) skip
-   *  the `marked.parse + DOMPurify.sanitize` pipeline. Empty string if
-   *  `text` is null/empty. */
-  textHtml: string;
-  /** Summary of tool names in this turn (from extra.tool_uses). */
-  toolNames: string[];
-  /** Thinking-block text, if captured (from extra.thinking). */
-  thinking: string | null;
-  /** Sanitized markdown-rendered HTML for {@link thinking}. Precomputed
-   *  for the same reason as {@link textHtml}. Empty string if `thinking`
-   *  is null/empty. */
-  thinkingHtml: string;
-  /** Model identifier (e.g. `claude-opus-4-6`). */
-  model: string | null;
-  /** For `kind === "tool"` only: the name of the invoked tool. */
-  toolName: string | null;
-  /** For `kind === "tool"`: the first non-empty `change[k].raw` on the
-   *  step — file-write tools carry a unified diff there. Precomputed at
-   *  flatten time so the diff body doesn't re-split on every render. */
-  toolDiff: { path: string; raw: string; lines: string[] } | null;
-  /** For `kind === "assistant"`: the `tool.invoke` sibling steps spawned
-   *  by this assistant turn (Claude derives them as separate siblings
-   *  rather than linear descendants). Rendered inline inside the bubble. */
-  toolInvocations: ChatTurn[];
-}
-
-
-/** Pick the first non-empty `change[k].raw` on a step — file-write tools
- *  (Edit/Write) carry the unified diff there. Precomputed once per turn
- *  at flatten time so the chat view doesn't re-split on every render. */
-function firstRawDiff(
-  s: StepRef,
-): { path: string; raw: string; lines: string[] } | null {
-  const ch = s.change;
-  if (!ch) return null;
-  for (const key of Object.keys(ch)) {
-    const raw = ch[key]?.raw;
-    if (typeof raw === "string" && raw.length) {
-      return { path: key, raw, lines: raw.split("\n") };
-    }
-  }
-  return null;
-}
-
-/**
- * Linearise the HEAD-ancestor chain earliest → latest for a chat-style
- * transcript. Follows `parents[0]` up from `head`, then reverses. Steps
- * with no `head` (bare Step docs, or Paths without a head) fall back to
- * the full step list in declaration order.
- *
- * Also splices in each HEAD-chain step's `tool.invoke` children right
- * after it — those attach to an assistant step as siblings (they don't
- * advance HEAD), so a naive parent-walk would skip them and you'd see
- * "Used Edit" chips with no actual tool output in the transcript.
- */
-// Memo by norm identity. Same rationale as buildTree — ChatView's `$derived`
-// block calls this, and it's expensive (markdown rendering dominates).
-const flattenCache = new WeakMap<Normalized, ChatTurn[]>();
-
-export function flattenChatHead(norm: Normalized): ChatTurn[] {
-  const cached = flattenCache.get(norm);
-  if (cached) {
-    perfMark(`flattenChatHead cache-hit (${cached.length}t)`);
-    return cached;
-  }
-  const { steps, head, actors, stepMap, childrenMap } = norm;
-  const t0 = performance.now();
-
-  let ordered: StepRef[];
-  if (head && stepMap.has(head)) {
-    const chain: StepRef[] = [];
-    const seen = new Set<string>();
-    let cursor: string | undefined = head;
-    while (cursor && !seen.has(cursor)) {
-      seen.add(cursor);
-      const s = stepMap.get(cursor);
-      if (!s) break;
-      chain.push(s);
-      cursor = s.step.parents?.[0];
-    }
-    chain.reverse();
-
-    ordered = chain;
-  } else {
-    ordered = steps;
-  }
-
-  // Build each turn. For assistant turns, also collect tool.invoke sibling
-  // children so the renderer can fold them inline inside the bubble instead
-  // of scattering them as separate cards in the transcript.
-  let mdMs = 0;
-  let mdCount = 0;
-  const timedMarkdown = (src: string | null | undefined): string => {
-    if (!src) return "";
-    const t = performance.now();
-    const out = renderMarkdown(src);
-    mdMs += performance.now() - t;
-    mdCount += 1;
-    return out;
-  };
-  const turnFor = (s: StepRef): ChatTurn => {
-    const c = classify(s);
-    return {
-      id: s.step.id,
-      step: s,
-      actor: s.step.actor,
-      actorDisplay: actorName(s.step.actor, actors),
-      actorKind: actorType(s.step.actor),
-      intent: s.meta?.intent ?? "",
-      timestamp: s.step.timestamp ?? null,
-      isHead: s.step.id === head,
-      changeKeys: s.change ? Object.keys(s.change) : [],
-      kind: c.kind,
-      text: c.text,
-      textHtml: timedMarkdown(c.text),
-      toolNames: c.toolNames,
-      thinking: c.thinking,
-      thinkingHtml: timedMarkdown(c.thinking),
-      model: c.model,
-      toolName: c.toolName,
-      toolDiff: firstRawDiff(s),
-      toolInvocations: [],
-    };
-  };
-
-  const onChain = new Set(ordered.map((s) => s.step.id));
-  const out = ordered.map((s) => {
-    const turn = turnFor(s);
-    if (turn.kind === "assistant") {
-      const kids = childrenMap.get(s.step.id) ?? [];
-      for (const kid of kids) {
-        if (onChain.has(kid)) continue;
-        const child = stepMap.get(kid);
-        if (!child) continue;
-        const childTurn = turnFor(child);
-        if (childTurn.kind === "tool") turn.toolInvocations.push(childTurn);
-      }
-    }
-    return turn;
-  });
-  const total = performance.now() - t0;
-  perfMark(
-    `flattenChatHead (${out.length}t ${total.toFixed(0)}ms: md ${mdMs.toFixed(0)}ms × ${mdCount})`,
-  );
-  flattenCache.set(norm, out);
-  return out;
-}
diff --git a/crates/toolpath-desktop/frontend/src/lib/types.ts b/crates/toolpath-desktop/frontend/src/lib/types.ts
deleted file mode 100644
index b9a28ff..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/types.ts
+++ /dev/null
@@ -1,269 +0,0 @@
-// Shared domain + message types. The IPC shapes match the Rust serde
-// definitions in `crates/toolpath-desktop/src/commands/*.rs`.
-
-export type Route =
-  | "home"
-  | "browse-agents"
-  | "browse-claude"
-  | "browse-pi"
-  | "browse-git"
-  | "browse-github"
-  | "preview"
-  | "result";
-
-export type AgentStatus = "available" | "unavailable" | "coming-soon";
-
-export interface AgentSummary {
-  id: string;
-  name: string;
-  tagline: string;
-  status: AgentStatus;
-  reason: string | null;
-  data_path: string | null;
-}
-
-export interface ClaudeProject {
-  project_path: string;
-  display_name: string;
-  session_count: number;
-  last_activity: string | null;
-}
-
-export interface ClaudeSession {
-  project_path: string;
-  session_id: string;
-  turn_count: number;
-  started_at: string | null;
-  last_activity: string | null;
-}
-
-export interface PiProject {
-  project_path: string;
-  display_name: string;
-  session_count: number;
-}
-
-export interface PiSession {
-  project_path: string;
-  session_id: string;
-  entry_count: number;
-  timestamp: string;
-}
-
-export interface GitBranch {
-  name: string;
-  head_short: string;
-  subject: string;
-  author: string;
-  timestamp: string;
-}
-
-export interface UploadResult {
-  url: string;
-  status: string;
-  stub: boolean;
-}
-
-// The Document is passed through as opaque JSON from the backend; we only
-// read well-known fields when rendering. Keep the shape minimal.
-export interface StepRef {
-  step: {
-    id: string;
-    actor: string;
-    timestamp?: string;
-    parents?: string[];
-  };
-  change?: Record<string, { raw?: string; structural?: unknown }>;
-  meta?: { intent?: string };
-}
-
-export interface DocPath {
-  path: { id: string; head: string; base?: { uri: string; ref?: string } };
-  steps: StepRef[];
-  meta?: { title?: string; actors?: Record<string, ActorDef> };
-}
-
-export interface ActorDef {
-  name?: string;
-  provider?: string;
-  model?: string;
-  identities?: { system: string; id: string }[];
-}
-
-export type Document =
-  | { Step: StepRef & { meta?: { actors?: Record<string, ActorDef> } } }
-  | { Path: DocPath }
-  | { Graph: { graph: { id: string }; paths: Array<DocPath | { $ref: string }>; meta?: { actors?: Record<string, ActorDef> } } };
-
-// ── Model ───────────────────────────────────────────────────────────────
-
-export interface Model {
-  route: Route;
-  error: string | null;
-  agents: AgentsSlice;
-  claude: ClaudeSlice;
-  pi: PiSlice;
-  git: GitSlice;
-  github: GithubSlice;
-  preview: PreviewSlice | null;
-  result: ResultSlice | null;
-}
-
-export interface AgentsSlice {
-  loading: boolean;
-  list: AgentSummary[] | null; // null = never fetched
-}
-
-export interface ClaudeSlice {
-  loadingProjects: boolean;
-  projects: ClaudeProject[];
-  projectsDone: boolean;
-  expanded: string | null;
-  sessionsByPath: Record<string, ClaudeSession[]>;
-  sessionsLoading: Record<string, boolean>;
-  titles: Record<string, string>;        // `${path}|${sid}` → title
-  /** project_path → title of its most-recent session (fills in lazily). */
-  projectTitles: Record<string, string>;
-  deriving: boolean;
-}
-
-export interface PiSlice {
-  loadingProjects: boolean;
-  projects: PiProject[];
-  projectsDone: boolean;
-  expanded: string | null;
-  sessionsByPath: Record<string, PiSession[]>;
-  sessionsLoading: Record<string, boolean>;
-  /** Max session `timestamp` seen per project_path. Drives project-list sort. */
-  maxTimestampByProject: Record<string, string>;
-  deriving: boolean;
-}
-
-export interface GitSlice {
-  repoPath: string;
-  branches: GitBranch[] | null;
-  loading: boolean;
-  selected: string | null;
-  deriving: boolean;
-}
-
-export interface GithubSlice {
-  url: string;
-  hasToken: boolean | null; // null = probing
-  editingToken: boolean;
-  tokenInput: string;
-  includeCi: boolean;
-  includeComments: boolean;
-  savingToken: boolean;
-  deriving: boolean;
-}
-
-export type TreeFilter = "all" | "head" | "dead";
-export type PreviewViewMode = "chat" | "graph";
-
-export interface PreviewSlice {
-  doc: Document;
-  source: string;
-  filename: string;
-  selectedStep: StepRef | null;
-  selectedActors: Record<string, ActorDef> | null;
-  /** HEAD-ancestor node ids whose dead subtrees are expanded. */
-  expandedBranches: Record<string, true>;
-  showTs: boolean;
-  showFiles: boolean;
-  vizEpoch: number;
-  /** Step-tree sidebar: substring search across id, actor, intent. */
-  treeQuery: string;
-  treeFilter: TreeFilter;
-  /** Primary pane: chat-style transcript of HEAD path, or DAG graph. */
-  viewMode: PreviewViewMode;
-  exporting: boolean;
-  uploading: boolean;
-}
-
-export type ResultSlice =
-  | { kind: "export"; path: string; source: string }
-  | { kind: "upload"; url: string; stub: boolean; source: string };
-
-// ── Msg ────────────────────────────────────────────────────────────────
-// Tagged union; `t` is the discriminator.
-
-export type Msg =
-  | { t: "NavigateTo"; screen: Route }
-  | { t: "Error"; error: unknown }
-  | { t: "ClearError" }
-
-  // Agents
-  | { t: "AgentsLoaded"; list: AgentSummary[] }
-  | { t: "AgentsSelect"; agent: AgentSummary }
-
-  // Claude
-  | { t: "ClaudeEnsureProjects" }
-  | { t: "ClaudeProjectReceived"; project: ClaudeProject }
-  | { t: "ClaudeProjectsDone" }
-  | { t: "ClaudeProjectsError"; error: string }
-  | { t: "ClaudeExpandProject"; path: string }
-  | { t: "ClaudeSessionReceived"; session: ClaudeSession }
-  | { t: "ClaudeSessionsDone"; path: string }
-  | { t: "ClaudeTitleLoaded"; path: string; sid: string; title: string | null }
-  | { t: "ClaudeProjectTitleLoaded"; path: string; title: string | null }
-  | { t: "ClaudeDerive"; path: string; sid: string }
-
-  // Pi
-  | { t: "PiEnsureProjects" }
-  | { t: "PiProjectReceived"; project: PiProject }
-  | { t: "PiProjectsDone" }
-  | { t: "PiProjectsError"; error: string }
-  | { t: "PiExpandProject"; path: string }
-  | { t: "PiSessionReceived"; session: PiSession }
-  | { t: "PiSessionsDone"; path: string }
-  | { t: "PiDerive"; path: string; sid: string }
-
-  // Git
-  | { t: "GitSetRepoPath"; value: string }
-  | { t: "GitPickRepo" }
-  | { t: "GitLoadBranches" }
-  | { t: "GitBranchesLoaded"; list: GitBranch[] }
-  | { t: "GitSelectBranch"; name: string }
-  | { t: "GitDerive" }
-
-  // GitHub
-  | { t: "GithubEnsureTokenStatus" }
-  | { t: "GithubSetUrl"; value: string }
-  | { t: "GithubTokenStatus"; hasToken: boolean }
-  | { t: "GithubEditToken"; on: boolean }
-  | { t: "GithubSetTokenInput"; value: string }
-  | { t: "GithubSaveToken" }
-  | { t: "GithubTokenSaved" }
-  | { t: "GithubClearToken" }
-  | { t: "GithubTokenCleared" }
-  | { t: "GithubToggleIncludeCi" }
-  | { t: "GithubToggleComments" }
-  | { t: "GithubDerive" }
-
-  // Derive result
-  | { t: "DeriveSucceeded"; doc: Document; source: string; filename: string }
-  | { t: "DeriveFailed"; error: unknown }
-
-  // Preview
-  | { t: "PreviewToggle"; key: "showTs" | "showFiles" }
-  | { t: "PreviewToggleBranch"; nodeId: string }
-  | { t: "PreviewSelectStep"; step: StepRef; actors: Record<string, ActorDef> | null }
-  | { t: "PreviewSetTreeQuery"; value: string }
-  | { t: "PreviewSetTreeFilter"; value: TreeFilter }
-  | { t: "PreviewSetViewMode"; value: PreviewViewMode }
-  | { t: "PreviewExport" }
-  | { t: "PreviewExportDone" }
-  | { t: "PreviewUpload" }
-  | { t: "ExportSucceeded"; path: string }
-  | { t: "UploadSucceeded"; res: UploadResult };
-
-// ── Cmd ────────────────────────────────────────────────────────────────
-
-export type Dispatch = (msg: Msg) => void;
-
-export type Cmd =
-  | { type: "invoke"; name: string; args?: Record<string, unknown>; onOk?: (r: unknown) => Msg | null; onErr?: (e: unknown) => Msg | null }
-  | { type: "emitMsg"; msg: Msg }
-  | { type: "batch"; cmds: Cmd[] }
-  | { type: "fn"; run: (dispatch: Dispatch) => void | Promise<void> };
diff --git a/crates/toolpath-desktop/frontend/src/lib/update.ts b/crates/toolpath-desktop/frontend/src/lib/update.ts
deleted file mode 100644
index 61f82ac..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/update.ts
+++ /dev/null
@@ -1,654 +0,0 @@
-// Pure Msg -> Model reducer. No Svelte, no Tauri — callable from tests.
-//
-// Returns a [nextModel, cmd] pair. `cmd` is either a single `Cmd` or null.
-
-import { invoke } from "./ipc";
-import type { Cmd, Model, Msg } from "./types";
-
-// Most-recent-first. Nullish values sort last. ISO-8601 strings compare
-// lexicographically, so plain string compare works for RFC3339 timestamps.
-const byRecencyDesc = (a: string | null | undefined, b: string | null | undefined): number => {
-  const aKey = a ?? "";
-  const bKey = b ?? "";
-  if (aKey === bKey) return 0;
-  return bKey < aKey ? -1 : 1;
-};
-
-export function initialModel(): Model {
-  return {
-    route: "home",
-    error: null,
-    agents: { loading: false, list: null },
-    claude: {
-      loadingProjects: false,
-      projects: [],
-      projectsDone: false,
-      expanded: null,
-      sessionsByPath: {},
-      sessionsLoading: {},
-      titles: {},
-      projectTitles: {},
-      deriving: false,
-    },
-    pi: {
-      loadingProjects: false,
-      projects: [],
-      projectsDone: false,
-      expanded: null,
-      sessionsByPath: {},
-      sessionsLoading: {},
-      maxTimestampByProject: {},
-      deriving: false,
-    },
-    git: {
-      repoPath: "",
-      branches: null,
-      loading: false,
-      selected: null,
-      deriving: false,
-    },
-    github: {
-      url: "",
-      hasToken: null,
-      editingToken: false,
-      tokenInput: "",
-      includeCi: true,
-      includeComments: true,
-      savingToken: false,
-      deriving: false,
-    },
-    preview: null,
-    result: null,
-  };
-}
-
-export function update(msg: Msg, m: Model): [Model, Cmd | null] {
-  switch (msg.t) {
-    case "NavigateTo": {
-      if (msg.screen === "browse-agents" && m.agents.list === null && !m.agents.loading) {
-        return [
-          { ...m, route: msg.screen, error: null, agents: { ...m.agents, loading: true } },
-          {
-            type: "invoke",
-            name: "list_agents",
-            onOk: (list) => ({ t: "AgentsLoaded", list: list as AgentList }),
-            onErr: (e) => ({ t: "Error", error: e }),
-          },
-        ];
-      }
-      // NOTE for streaming flows (claude/pi): we flip `loadingProjects: true`
-      // here but DO NOT kick off the invoke. The component's mount-effect
-      // subscribes to the events, awaits those Promises, and only then
-      // issues the invoke — eliminating the race where backend events fire
-      // before Tauri has registered the listener.
-      if (msg.screen === "browse-claude" && !m.claude.loadingProjects && m.claude.projects.length === 0) {
-        return [
-          {
-            ...m,
-            route: msg.screen,
-            error: null,
-            claude: { ...m.claude, loadingProjects: true, projectsDone: false },
-          },
-          null,
-        ];
-      }
-      if (msg.screen === "browse-pi" && !m.pi.loadingProjects && m.pi.projects.length === 0) {
-        return [
-          {
-            ...m,
-            route: msg.screen,
-            error: null,
-            pi: { ...m.pi, loadingProjects: true, projectsDone: false },
-          },
-          null,
-        ];
-      }
-      if (msg.screen === "browse-github") {
-        return [
-          { ...m, route: msg.screen, error: null, github: { ...m.github, hasToken: null } },
-          {
-            type: "invoke",
-            name: "github_has_token",
-            onOk: (b) => ({ t: "GithubTokenStatus", hasToken: !!b }),
-            onErr: (e) => ({ t: "Error", error: e }),
-          },
-        ];
-      }
-      return [{ ...m, route: msg.screen, error: null }, null];
-    }
-
-    case "Error":
-      return [{ ...m, error: fmtErr(msg.error) }, null];
-    case "ClearError":
-      return [{ ...m, error: null }, null];
-
-    case "AgentsLoaded":
-      return [{ ...m, agents: { loading: false, list: msg.list } }, null];
-    case "AgentsSelect": {
-      if (!msg.agent || msg.agent.status !== "available") return [m, null];
-      if (msg.agent.id === "claude-code") {
-        return [m, { type: "emitMsg", msg: { t: "NavigateTo", screen: "browse-claude" } }];
-      }
-      if (msg.agent.id === "pi-dev") {
-        return [m, { type: "emitMsg", msg: { t: "NavigateTo", screen: "browse-pi" } }];
-      }
-      return [m, null];
-    }
-
-    // Kick off the Claude projects stream without changing route. Used when
-    // BrowseClaude is embedded inside Home — there's no NavigateTo to rely
-    // on. Idempotent: no-op if already loading or results are cached.
-    case "ClaudeEnsureProjects": {
-      if (m.claude.loadingProjects || m.claude.projects.length > 0 || m.claude.projectsDone) {
-        return [m, null];
-      }
-      return [
-        { ...m, claude: { ...m.claude, loadingProjects: true, projectsDone: false }, error: null },
-        null,
-      ];
-    }
-    case "ClaudeProjectReceived": {
-      const projects = [...m.claude.projects, msg.project].sort((a, b) =>
-        byRecencyDesc(a.last_activity, b.last_activity),
-      );
-      const path = msg.project.project_path;
-      return [
-        { ...m, claude: { ...m.claude, projects } },
-        {
-          type: "invoke",
-          name: "claude_project_latest_title",
-          args: { projectPath: path },
-          onOk: (title) => ({
-            t: "ClaudeProjectTitleLoaded",
-            path,
-            title: (title ?? null) as string | null,
-          }),
-        },
-      ];
-    }
-    case "ClaudeProjectsDone":
-      return [{ ...m, claude: { ...m.claude, loadingProjects: false, projectsDone: true } }, null];
-    case "ClaudeProjectsError":
-      return [
-        { ...m, error: msg.error, claude: { ...m.claude, loadingProjects: false, projectsDone: true } },
-        null,
-      ];
-
-    case "ClaudeExpandProject": {
-      const wasExpanded = m.claude.expanded === msg.path;
-      const claude = { ...m.claude, expanded: wasExpanded ? null : msg.path };
-      if (wasExpanded || m.claude.sessionsByPath[msg.path]) {
-        return [{ ...m, claude }, null];
-      }
-      claude.sessionsByPath = { ...claude.sessionsByPath, [msg.path]: [] };
-      claude.sessionsLoading = { ...claude.sessionsLoading, [msg.path]: true };
-      // Invoke is kicked off by the component's subscribe-effect once the
-      // `claude:session` listener is live — see BrowseClaude.svelte.
-      return [{ ...m, claude }, null];
-    }
-    case "ClaudeSessionReceived": {
-      const path = msg.session.project_path;
-      const existing = m.claude.sessionsByPath[path] ?? [];
-      const sessions = [...existing, msg.session].sort((a, b) =>
-        byRecencyDesc(a.last_activity ?? a.started_at, b.last_activity ?? b.started_at),
-      );
-      const claude = {
-        ...m.claude,
-        sessionsByPath: { ...m.claude.sessionsByPath, [path]: sessions },
-      };
-      return [
-        { ...m, claude },
-        {
-          type: "invoke",
-          name: "claude_session_title",
-          args: { projectPath: path, sessionId: msg.session.session_id },
-          onOk: (title) => ({
-            t: "ClaudeTitleLoaded",
-            path,
-            sid: msg.session.session_id,
-            title: (title ?? null) as string | null,
-          }),
-        },
-      ];
-    }
-    case "ClaudeSessionsDone":
-      return [
-        { ...m, claude: { ...m.claude, sessionsLoading: { ...m.claude.sessionsLoading, [msg.path]: false } } },
-        null,
-      ];
-    case "ClaudeTitleLoaded": {
-      const titles = { ...m.claude.titles, [`${msg.path}|${msg.sid}`]: msg.title ?? "" };
-      return [{ ...m, claude: { ...m.claude, titles } }, null];
-    }
-    case "ClaudeProjectTitleLoaded": {
-      const title = msg.title?.trim();
-      if (!title) return [m, null];
-      const projectTitles = { ...m.claude.projectTitles, [msg.path]: title };
-      return [{ ...m, claude: { ...m.claude, projectTitles } }, null];
-    }
-    case "ClaudeDerive": {
-      const { path, sid } = msg;
-      const displayName = path.split("/").filter(Boolean).pop() ?? "claude";
-      const shortId = sid.slice(0, 8);
-      const filename = `${displayName}-${shortId}.path.json`;
-      return [
-        { ...m, claude: { ...m.claude, deriving: true }, error: null },
-        {
-          type: "invoke",
-          name: "derive_claude",
-          args: { projectPath: path, sessionIds: [sid], includeThinking: false },
-          onOk: (doc) => ({ t: "DeriveSucceeded", doc: doc as import("./types").Document, source: `Claude: ${displayName}`, filename }),
-          onErr: (e) => ({ t: "DeriveFailed", error: e }),
-        },
-      ];
-    }
-
-    // --- Pi -------------------------------------------------------------
-    case "PiEnsureProjects": {
-      if (m.pi.loadingProjects || m.pi.projects.length > 0 || m.pi.projectsDone) {
-        return [m, null];
-      }
-      return [
-        { ...m, pi: { ...m.pi, loadingProjects: true, projectsDone: false }, error: null },
-        null,
-      ];
-    }
-    case "PiProjectReceived": {
-      const map = m.pi.maxTimestampByProject;
-      const projects = [...m.pi.projects, msg.project].sort((a, b) =>
-        byRecencyDesc(map[a.project_path], map[b.project_path]),
-      );
-      return [{ ...m, pi: { ...m.pi, projects } }, null];
-    }
-    case "PiProjectsDone":
-      return [{ ...m, pi: { ...m.pi, loadingProjects: false, projectsDone: true } }, null];
-    case "PiProjectsError":
-      return [
-        { ...m, error: msg.error, pi: { ...m.pi, loadingProjects: false, projectsDone: true } },
-        null,
-      ];
-    case "PiExpandProject": {
-      const wasExpanded = m.pi.expanded === msg.path;
-      const pi = { ...m.pi, expanded: wasExpanded ? null : msg.path };
-      if (wasExpanded || m.pi.sessionsByPath[msg.path]) {
-        return [{ ...m, pi }, null];
-      }
-      pi.sessionsByPath = { ...pi.sessionsByPath, [msg.path]: [] };
-      pi.sessionsLoading = { ...pi.sessionsLoading, [msg.path]: true };
-      // Invoke kicked off from BrowsePi.svelte's subscribe-effect.
-      return [{ ...m, pi }, null];
-    }
-    case "PiSessionReceived": {
-      const path = msg.session.project_path;
-      const existing = m.pi.sessionsByPath[path] ?? [];
-      const sessions = [...existing, msg.session].sort((a, b) =>
-        byRecencyDesc(a.timestamp, b.timestamp),
-      );
-      const prevMax = m.pi.maxTimestampByProject[path];
-      const nextMax = prevMax && prevMax > msg.session.timestamp ? prevMax : msg.session.timestamp;
-      const maxTimestampByProject = { ...m.pi.maxTimestampByProject, [path]: nextMax };
-      const projects = [...m.pi.projects].sort((a, b) =>
-        byRecencyDesc(maxTimestampByProject[a.project_path], maxTimestampByProject[b.project_path]),
-      );
-      return [
-        {
-          ...m,
-          pi: {
-            ...m.pi,
-            sessionsByPath: { ...m.pi.sessionsByPath, [path]: sessions },
-            maxTimestampByProject,
-            projects,
-          },
-        },
-        null,
-      ];
-    }
-    case "PiSessionsDone":
-      return [
-        { ...m, pi: { ...m.pi, sessionsLoading: { ...m.pi.sessionsLoading, [msg.path]: false } } },
-        null,
-      ];
-    case "PiDerive": {
-      const { path, sid } = msg;
-      const displayName = path.split("/").filter(Boolean).pop() ?? "pi";
-      const shortId = sid.slice(0, 8);
-      const filename = `${displayName}-${shortId}.path.json`;
-      return [
-        { ...m, pi: { ...m.pi, deriving: true }, error: null },
-        {
-          type: "invoke",
-          name: "derive_pi",
-          args: { projectPath: path, sessionIds: [sid], includeThinking: false },
-          onOk: (doc) => ({
-            t: "DeriveSucceeded",
-            doc: doc as import("./types").Document,
-            source: `pi.dev: ${displayName}`,
-            filename,
-          }),
-          onErr: (e) => ({ t: "DeriveFailed", error: e }),
-        },
-      ];
-    }
-
-    // --- Git ------------------------------------------------------------
-    case "GitSetRepoPath":
-      return [{ ...m, git: { ...m.git, repoPath: msg.value } }, null];
-    case "GitPickRepo":
-      return [
-        m,
-        {
-          type: "fn",
-          run: async (dispatch) => {
-            const { open } = await import("@tauri-apps/plugin-dialog");
-            try {
-              const picked = await open({ directory: true, multiple: false });
-              if (typeof picked === "string" && picked) {
-                dispatch({ t: "GitSetRepoPath", value: picked });
-                dispatch({ t: "GitLoadBranches" });
-              }
-            } catch (e) {
-              dispatch({ t: "Error", error: e });
-            }
-          },
-        },
-      ];
-    case "GitLoadBranches": {
-      if (!m.git.repoPath) return [m, null];
-      return [
-        { ...m, git: { ...m.git, loading: true, branches: null, selected: null }, error: null },
-        {
-          type: "invoke",
-          name: "list_git_branches",
-          args: { repoPath: m.git.repoPath },
-          onOk: (list) => ({ t: "GitBranchesLoaded", list: list as import("./types").GitBranch[] }),
-          onErr: (e) => ({ t: "Error", error: e }),
-        },
-      ];
-    }
-    case "GitBranchesLoaded": {
-      const branches = [...msg.list].sort((a, b) => byRecencyDesc(a.timestamp, b.timestamp));
-      const selected = branches.length ? branches[0].name : null;
-      return [{ ...m, git: { ...m.git, loading: false, branches, selected } }, null];
-    }
-    case "GitSelectBranch":
-      return [{ ...m, git: { ...m.git, selected: msg.name } }, null];
-    case "GitDerive": {
-      const g = m.git;
-      if (!g.selected || !g.repoPath) return [m, null];
-      const repoName = g.repoPath.split("/").filter(Boolean).pop() ?? "repo";
-      const slug = g.selected.replace(/[^a-z0-9]+/gi, "-");
-      return [
-        { ...m, git: { ...g, deriving: true }, error: null },
-        {
-          type: "invoke",
-          name: "derive_git",
-          args: { repoPath: g.repoPath, branch: g.selected, base: null },
-          onOk: (doc) => ({
-            t: "DeriveSucceeded",
-            doc: doc as import("./types").Document,
-            source: `Git: ${repoName}@${g.selected}`,
-            filename: `${repoName}-${slug}.path.json`,
-          }),
-          onErr: (e) => ({ t: "DeriveFailed", error: e }),
-        },
-      ];
-    }
-
-    // --- GitHub ---------------------------------------------------------
-    case "GithubEnsureTokenStatus": {
-      if (m.github.hasToken !== null) return [m, null];
-      return [
-        m,
-        {
-          type: "invoke",
-          name: "github_has_token",
-          onOk: (b) => ({ t: "GithubTokenStatus", hasToken: !!b }),
-          onErr: (e) => ({ t: "Error", error: e }),
-        },
-      ];
-    }
-    case "GithubSetUrl":
-      return [{ ...m, github: { ...m.github, url: msg.value } }, null];
-    case "GithubTokenStatus":
-      return [{ ...m, github: { ...m.github, hasToken: msg.hasToken } }, null];
-    case "GithubEditToken":
-      return [
-        { ...m, github: { ...m.github, editingToken: msg.on, tokenInput: msg.on ? "" : m.github.tokenInput } },
-        null,
-      ];
-    case "GithubSetTokenInput":
-      return [{ ...m, github: { ...m.github, tokenInput: msg.value } }, null];
-    case "GithubSaveToken": {
-      const t = m.github.tokenInput.trim();
-      if (!t) return [m, null];
-      return [
-        { ...m, github: { ...m.github, savingToken: true }, error: null },
-        {
-          type: "invoke",
-          name: "github_set_token",
-          args: { token: t },
-          onOk: () => ({ t: "GithubTokenSaved" }),
-          onErr: (e) => ({ t: "Error", error: e }),
-        },
-      ];
-    }
-    case "GithubTokenSaved":
-      return [
-        { ...m, github: { ...m.github, savingToken: false, editingToken: false, tokenInput: "", hasToken: true } },
-        null,
-      ];
-    case "GithubClearToken":
-      return [
-        m,
-        {
-          type: "invoke",
-          name: "github_clear_token",
-          onOk: () => ({ t: "GithubTokenCleared" }),
-          onErr: (e) => ({ t: "Error", error: e }),
-        },
-      ];
-    case "GithubTokenCleared":
-      return [{ ...m, github: { ...m.github, hasToken: false } }, null];
-    case "GithubToggleIncludeCi":
-      return [{ ...m, github: { ...m.github, includeCi: !m.github.includeCi } }, null];
-    case "GithubToggleComments":
-      return [{ ...m, github: { ...m.github, includeComments: !m.github.includeComments } }, null];
-    case "GithubDerive": {
-      const gh = m.github;
-      if (!gh.url || !gh.hasToken) return [m, null];
-      const prMatch = gh.url.match(/github\.com\/([^/]+)\/([^/]+)\/pull\/(\d+)/);
-      const sourceLabel = prMatch ? `${prMatch[1]}/${prMatch[2]}#${prMatch[3]}` : gh.url;
-      const filename = prMatch
-        ? `${prMatch[1]}-${prMatch[2]}-pr-${prMatch[3]}.path.json`
-        : "github-pr.path.json";
-      return [
-        { ...m, github: { ...gh, deriving: true }, error: null },
-        {
-          type: "invoke",
-          name: "derive_github",
-          args: { prUrl: gh.url, includeCi: gh.includeCi, includeComments: gh.includeComments },
-          onOk: (doc) => ({
-            t: "DeriveSucceeded",
-            doc: doc as import("./types").Document,
-            source: `GitHub: ${sourceLabel}`,
-            filename,
-          }),
-          onErr: (e) => ({ t: "DeriveFailed", error: e }),
-        },
-      ];
-    }
-
-    case "DeriveSucceeded":
-      return [
-        {
-          ...m,
-          route: "preview",
-          claude: { ...m.claude, deriving: false },
-          pi: { ...m.pi, deriving: false },
-          git: { ...m.git, deriving: false },
-          github: { ...m.github, deriving: false },
-          preview: {
-            doc: msg.doc,
-            source: msg.source,
-            filename: msg.filename,
-            selectedStep: null,
-            selectedActors: null,
-            expandedBranches: {},
-            showTs: false,
-            showFiles: false,
-            vizEpoch: 0,
-            treeQuery: "",
-            treeFilter: "all",
-            viewMode: "chat",
-            exporting: false,
-            uploading: false,
-          },
-        },
-        null,
-      ];
-    case "DeriveFailed":
-      return [
-        {
-          ...m,
-          claude: { ...m.claude, deriving: false },
-          pi: { ...m.pi, deriving: false },
-          git: { ...m.git, deriving: false },
-          github: { ...m.github, deriving: false },
-          error: fmtErr(msg.error),
-        },
-        null,
-      ];
-
-    // --- Preview --------------------------------------------------------
-    case "PreviewToggle": {
-      if (!m.preview) return [m, null];
-      return [
-        {
-          ...m,
-          preview: { ...m.preview, [msg.key]: !m.preview[msg.key], vizEpoch: m.preview.vizEpoch + 1 },
-        },
-        null,
-      ];
-    }
-    case "PreviewToggleBranch": {
-      if (!m.preview) return [m, null];
-      const cur = m.preview.expandedBranches;
-      const next = { ...cur };
-      if (next[msg.nodeId]) delete next[msg.nodeId];
-      else next[msg.nodeId] = true;
-      return [
-        {
-          ...m,
-          preview: { ...m.preview, expandedBranches: next, vizEpoch: m.preview.vizEpoch + 1 },
-        },
-        null,
-      ];
-    }
-    case "PreviewSelectStep":
-      if (!m.preview) return [m, null];
-      return [
-        { ...m, preview: { ...m.preview, selectedStep: msg.step, selectedActors: msg.actors } },
-        null,
-      ];
-    case "PreviewSetTreeQuery":
-      if (!m.preview) return [m, null];
-      return [{ ...m, preview: { ...m.preview, treeQuery: msg.value } }, null];
-    case "PreviewSetTreeFilter":
-      if (!m.preview) return [m, null];
-      return [{ ...m, preview: { ...m.preview, treeFilter: msg.value } }, null];
-    case "PreviewSetViewMode":
-      if (!m.preview) return [m, null];
-      // Bump vizEpoch when switching into graph mode so the renderer
-      // re-measures; the canvas div is remounted when {#if} flips.
-      return [
-        {
-          ...m,
-          preview: {
-            ...m.preview,
-            viewMode: msg.value,
-            vizEpoch: m.preview.vizEpoch + 1,
-          },
-        },
-        null,
-      ];
-    case "PreviewExport": {
-      if (!m.preview) return [m, null];
-      const pv = m.preview;
-      return [
-        { ...m, preview: { ...pv, exporting: true }, error: null },
-        {
-          type: "fn",
-          run: async (dispatch) => {
-            try {
-              const { save } = await import("@tauri-apps/plugin-dialog");
-              const picked = await save({
-                defaultPath: pv.filename,
-                filters: [{ name: "Toolpath JSON", extensions: ["json"] }],
-              });
-              if (!picked) {
-                dispatch({ t: "PreviewExportDone" });
-                return;
-              }
-              const saved = await invoke<string>("save_document", {
-                document: pv.doc,
-                outPath: picked,
-              });
-              dispatch({ t: "ExportSucceeded", path: saved });
-            } catch (e) {
-              dispatch({ t: "Error", error: e });
-              dispatch({ t: "PreviewExportDone" });
-            }
-          },
-        },
-      ];
-    }
-    case "PreviewExportDone":
-      return [m.preview ? { ...m, preview: { ...m.preview, exporting: false } } : m, null];
-    case "ExportSucceeded":
-      return [
-        {
-          ...m,
-          route: "result",
-          preview: m.preview ? { ...m.preview, exporting: false } : null,
-          result: { kind: "export", path: msg.path, source: m.preview?.source ?? "" },
-        },
-        null,
-      ];
-
-    case "PreviewUpload":
-      if (!m.preview) return [m, null];
-      return [
-        { ...m, preview: { ...m.preview, uploading: true }, error: null },
-        {
-          type: "invoke",
-          name: "upload_to_pathbase",
-          args: { document: m.preview.doc },
-          onOk: (res) => ({ t: "UploadSucceeded", res: res as import("./types").UploadResult }),
-          onErr: (e) => ({ t: "Error", error: e }),
-        },
-      ];
-    case "UploadSucceeded":
-      return [
-        {
-          ...m,
-          route: "result",
-          preview: m.preview ? { ...m.preview, uploading: false } : null,
-          result: { kind: "upload", url: msg.res.url, stub: msg.res.stub, source: m.preview?.source ?? "" },
-        },
-        null,
-      ];
-  }
-}
-
-function fmtErr(e: unknown): string {
-  if (e == null) return "unknown error";
-  if (typeof e === "string") return e;
-  if (typeof e === "object" && e !== null) {
-    const anyE = e as { message?: string; code?: string };
-    if (anyE.message) return anyE.message;
-    try { return JSON.stringify(e); } catch { return String(e); }
-  }
-  return String(e);
-}
-
-type AgentList = import("./types").AgentSummary[];
diff --git a/crates/toolpath-desktop/frontend/src/lib/viz.ts b/crates/toolpath-desktop/frontend/src/lib/viz.ts
deleted file mode 100644
index ec23820..0000000
--- a/crates/toolpath-desktop/frontend/src/lib/viz.ts
+++ /dev/null
@@ -1,441 +0,0 @@
-// Path graph renderer.
-//
-// Renders a Toolpath Document as a dagre-laid-out DAG of HTML "cards"
-// connected by SVG edges. Dead-end subtrees are hidden behind their
-// HEAD-path sibling until the user clicks the card's "expand" chip —
-// clicking the chip fires `onToggleBranch(nodeId)`, which flips a key in
-// `expandedBranches` and causes the graph to re-layout including those
-// nodes.
-//
-// Usage: `render(doc, containerEl, opts)`. Call again on any state change
-// (selected / expanded / toggles) — the function rebuilds the DOM under
-// `containerEl` from scratch.
-
-import * as dagre from "@dagrejs/dagre";
-import { classify } from "./classify";
-import { renderMarkdown } from "./markdown";
-import type { ActorDef, Document, StepRef } from "./types";
-
-// Graph re-renders happen whenever any unrelated reactive state mutates
-// (selection, branch expansion, show-ts/show-files toggles). `marked.parse
-// + DOMPurify.sanitize` is expensive on long assistant turns, and the
-// same step body is almost always identical across consecutive renders
-// of the same document. Memoize by step id + body text so a repeat
-// `render()` is a map lookup rather than a fresh parse.
-//
-// The cache is keyed on both id and text because a doc reload could
-// reuse ids with new text; we also keep it unbounded because graph
-// views rarely exceed a few thousand steps and each entry is small.
-const cardMarkdownCache = new Map<string, { text: string; html: string }>();
-
-function memoRenderMarkdown(id: string, text: string): string {
-  const hit = cardMarkdownCache.get(id);
-  if (hit && hit.text === text) return hit.html;
-  const html = renderMarkdown(text);
-  cardMarkdownCache.set(id, { text, html });
-  return html;
-}
-
-export interface RenderOpts {
-  selectedStepId: string | null;
-  expandedBranches: Record<string, true>;
-  showTs: boolean;
-  showFiles: boolean;
-  onSelectStep: (step: StepRef, actors: Record<string, ActorDef> | null) => void;
-  onToggleBranch: (stepId: string) => void;
-}
-
-// ─── Document normalization ──────────────────────────────────────────────
-
-export interface Normalized {
-  steps: StepRef[];
-  head: string | null;
-  actors: Record<string, ActorDef> | null;
-  stepMap: Map<string, StepRef>;
-  childrenMap: Map<string, string[]>;
-  headSet: Set<string>;
-}
-
-export function normalize(doc: Document): Normalized {
-  let steps: StepRef[] = [];
-  let head: string | null = null;
-  let actors: Record<string, ActorDef> | null = null;
-
-  if ("Step" in doc) {
-    steps = [doc.Step];
-    actors = doc.Step.meta?.actors ?? null;
-  } else if ("Path" in doc) {
-    steps = doc.Path.steps;
-    head = doc.Path.path.head;
-    actors = doc.Path.meta?.actors ?? null;
-  } else if ("Graph" in doc) {
-    actors = doc.Graph.meta?.actors ?? null;
-    for (const p of doc.Graph.paths) {
-      if ("$ref" in p) continue;
-      if (head == null) head = p.path.head;
-      for (const s of p.steps) steps.push(s);
-    }
-  }
-
-  const stepMap = new Map<string, StepRef>(steps.map((s) => [s.step.id, s]));
-  const childrenMap = new Map<string, string[]>();
-  for (const s of steps) {
-    for (const pid of s.step.parents || []) {
-      const list = childrenMap.get(pid);
-      if (list) list.push(s.step.id);
-      else childrenMap.set(pid, [s.step.id]);
-    }
-  }
-
-  const headSet = new Set<string>();
-  if (head && stepMap.has(head)) {
-    const stack: string[] = [head];
-    while (stack.length) {
-      const id = stack.pop()!;
-      if (headSet.has(id)) continue;
-      headSet.add(id);
-      const s = stepMap.get(id);
-      if (s?.step.parents) for (const p of s.step.parents) stack.push(p);
-    }
-  }
-  return { steps, head, actors, stepMap, childrenMap, headSet };
-}
-
-// ─── Visibility + helpers ────────────────────────────────────────────────
-
-export function actorType(a: string): string {
-  const i = a.indexOf(":");
-  return i < 0 ? a : a.slice(0, i);
-}
-export function actorName(
-  a: string,
-  actors: Record<string, ActorDef> | null,
-): string {
-  const def = actors?.[a];
-  if (def?.name) return def.name;
-  const i = a.indexOf(":");
-  return i < 0 ? a : a.slice(i + 1);
-}
-function esc(s: string): string {
-  return s.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
-}
-function cssSafeId(id: string): string {
-  return id.replace(/[^a-zA-Z0-9_-]/g, "_");
-}
-
-/** Walk dead-node → parent chain until hitting a HEAD-path ancestor. */
-function findHeadAncestor(
-  id: string,
-  stepMap: Map<string, StepRef>,
-  headSet: Set<string>,
-): string | null {
-  if (headSet.has(id)) return null;
-  let current: string | undefined = id;
-  while (current) {
-    const s = stepMap.get(current);
-    const parents = s?.step.parents;
-    if (!parents?.length) return null;
-    const p: string = parents[0];
-    if (headSet.has(p)) return p;
-    current = p;
-  }
-  return null;
-}
-
-function deadChildrenCount(
-  id: string,
-  headSet: Set<string>,
-  childrenMap: Map<string, string[]>,
-): number {
-  if (!headSet.has(id)) return 0;
-  const kids = childrenMap.get(id) ?? [];
-  let n = 0;
-  for (const k of kids) if (!headSet.has(k)) n++;
-  return n;
-}
-
-function isStepVisible(
-  id: string,
-  headSet: Set<string>,
-  stepMap: Map<string, StepRef>,
-  expandedBranches: Record<string, true>,
-): boolean {
-  if (headSet.has(id)) return true;
-  const anc = findHeadAncestor(id, stepMap, headSet);
-  return !!(anc && expandedBranches[anc]);
-}
-
-// ─── Rendering ────────────────────────────────────────────────────────────
-
-function renderCard(
-  s: StepRef,
-  flags: {
-    isHead: boolean;
-    isDead: boolean;
-    isFocused: boolean;
-    deadKids: number;
-    isExpanded: boolean;
-    actors: Record<string, ActorDef> | null;
-    showTs: boolean;
-    showFiles: boolean;
-  },
-): string {
-  const id = s.step.id;
-  const atype = actorType(s.step.actor);
-  const changeKeys = s.change ? Object.keys(s.change) : [];
-  const hasHidden = flags.deadKids > 0 && !flags.isExpanded;
-
-  // Pull the same fields the chat view uses so card bodies mirror chat.
-  const classified = classify(s);
-  const bodyText = classified.text ?? s.meta?.intent ?? "";
-  const speaker =
-    classified.kind === "user" ? "You" : actorName(s.step.actor, flags.actors);
-  const kindClass = `pg-card--kind-${classified.kind}`;
-
-  const classes = [
-    "pg-card",
-    `pg-card--role-${atype}`,
-    kindClass,
-    flags.isHead ? "pg-card--head" : "",
-    flags.isDead ? "pg-card--dead" : "",
-    flags.isFocused ? "pg-card--focused" : "",
-    hasHidden ? "pg-card--has-hidden" : "",
-  ]
-    .filter(Boolean)
-    .join(" ");
-
-  const chips: string[] = [];
-  if (flags.isHead)
-    chips.push(`<span class="pg-card__chip pg-card__chip--head">HEAD</span>`);
-  if (flags.isDead)
-    chips.push(`<span class="pg-card__chip pg-card__chip--dead">dead</span>`);
-
-  const toggle =
-    flags.deadKids > 0
-      ? `<button class="pg-card__toggle${flags.isExpanded ? " pg-card__toggle--on" : ""}" data-toggle-branch="${esc(id)}">${flags.isExpanded ? "collapse" : "expand"}</button>`
-      : "";
-
-  const tsText =
-    flags.showTs && s.step.timestamp
-      ? esc(s.step.timestamp.replace("T", " ").replace("Z", " UTC"))
-      : "";
-  const files =
-    flags.showFiles && changeKeys.length
-      ? `<div class="pg-card__files">${changeKeys
-          .map((k) => `<span>${esc(k)}</span>`)
-          .join(" · ")}</div>`
-      : "";
-
-  // Tool-invoke: label + name, no body text.
-  if (classified.kind === "tool") {
-    return `
-      <div class="${classes}" id="pg-card-${cssSafeId(id)}" data-step-id="${esc(id)}">
-        <div class="pg-card__head">
-          <span class="pg-card__tool-name">${esc(classified.toolName ?? "tool")}</span>
-          <div class="pg-card__chips">${chips.join("")}</div>
-        </div>
-        <div class="pg-card__actor">${esc(actorName(s.step.actor, flags.actors))}${tsText ? " · " + tsText : ""}</div>
-        ${files}
-        ${toggle ? `<div class="pg-card__footer">${toggle}</div>` : ""}
-      </div>`;
-  }
-
-  // System/init/event: compact meta row only.
-  if (classified.kind === "system") {
-    const label = bodyText || classified.model || "system";
-    return `
-      <div class="${classes}" id="pg-card-${cssSafeId(id)}" data-step-id="${esc(id)}">
-        <div class="pg-card__head">
-          <span class="pg-card__sys-label">${esc(label)}</span>
-          <div class="pg-card__chips">${chips.join("")}</div>
-        </div>
-        <div class="pg-card__actor">${esc(actorName(s.step.actor, flags.actors))}${tsText ? " · " + tsText : ""}</div>
-        ${toggle ? `<div class="pg-card__footer">${toggle}</div>` : ""}
-      </div>`;
-  }
-
-  // Assistant / user: chat-shaped body.
-  const toolUses = classified.toolNames.length
-    ? `<div class="pg-card__tools">
-        <span class="pg-card__tools-label">Used</span>
-        ${classified.toolNames.map((n) => `<span class="pg-card__tool-chip">${esc(n)}</span>`).join("")}
-      </div>`
-    : "";
-
-  return `
-    <div class="${classes}" id="pg-card-${cssSafeId(id)}" data-step-id="${esc(id)}">
-      <div class="pg-card__head">
-        <span class="pg-card__speaker">${esc(speaker)}</span>
-        ${classified.model ? `<span class="pg-card__model">${esc(classified.model)}</span>` : ""}
-        <div class="pg-card__chips">${chips.join("")}</div>
-      </div>
-      ${bodyText
-        ? `<div class="pg-card__body markdown markdown--compact">${memoRenderMarkdown(id, bodyText)}</div>`
-        : `<div class="pg-card__body pg-card__body--empty">(no message text)</div>`}
-      ${toolUses}
-      ${tsText ? `<div class="pg-card__ts">${tsText}</div>` : ""}
-      ${files}
-      ${toggle ? `<div class="pg-card__footer">${toggle}</div>` : ""}
-    </div>`;
-}
-
-function pointsToPath(pts: { x: number; y: number }[]): string {
-  if (pts.length === 0) return "";
-  if (pts.length === 1) return `M ${pts[0].x} ${pts[0].y}`;
-  let d = `M ${pts[0].x} ${pts[0].y}`;
-  for (let i = 1; i < pts.length; i++) d += ` L ${pts[i].x} ${pts[i].y}`;
-  return d;
-}
-
-const NS = "http://www.w3.org/2000/svg";
-
-export function render(
-  doc: Document,
-  container: HTMLElement,
-  opts: RenderOpts,
-): void {
-  const { steps, head, actors, stepMap, childrenMap, headSet } = normalize(doc);
-
-  // Build container DOM
-  container.innerHTML = "";
-  const graphEl = document.createElement("div");
-  graphEl.className = "path-graph";
-  const svgEl = document.createElementNS(NS, "svg");
-  svgEl.setAttribute("class", "path-graph__edges");
-  // Arrow markers live in <defs>
-  const defs = document.createElementNS(NS, "defs");
-  defs.innerHTML = `
-    <marker id="pg-arrow" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
-      <path d="M 0 0 L 10 5 L 0 10 z" fill="#8a8078" />
-    </marker>
-    <marker id="pg-arrow-dead" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
-      <path d="M 0 0 L 10 5 L 0 10 z" fill="#c44030" fill-opacity="0.8" />
-    </marker>`;
-  svgEl.appendChild(defs);
-  const nodesEl = document.createElement("div");
-  nodesEl.className = "path-graph__nodes";
-  graphEl.appendChild(svgEl);
-  graphEl.appendChild(nodesEl);
-  container.appendChild(graphEl);
-
-  if (steps.length === 0) {
-    nodesEl.innerHTML = `<div class="path-graph__empty">This document has no steps to visualize.</div>`;
-    return;
-  }
-
-  // Visible step set
-  const visible = steps.filter((s) =>
-    isStepVisible(s.step.id, headSet, stepMap, opts.expandedBranches),
-  );
-
-  // Pass 1 — render cards so the browser can measure them.
-  nodesEl.innerHTML = visible
-    .map((s) => {
-      const id = s.step.id;
-      return renderCard(s, {
-        isHead: id === head,
-        isDead: !headSet.has(id),
-        isFocused: id === opts.selectedStepId,
-        deadKids: deadChildrenCount(id, headSet, childrenMap),
-        isExpanded: !!opts.expandedBranches[id],
-        actors,
-        showTs: opts.showTs,
-        showFiles: opts.showFiles,
-      });
-    })
-    .join("");
-
-  // Pass 2 — measure.
-  const dims = new Map<string, { width: number; height: number }>();
-  for (const s of visible) {
-    const el = document.getElementById(`pg-card-${cssSafeId(s.step.id)}`);
-    if (!el) continue;
-    dims.set(s.step.id, {
-      width: el.offsetWidth,
-      height: el.offsetHeight,
-    });
-  }
-
-  // Pass 3 — dagre layout.
-  const g = new dagre.graphlib.Graph();
-  g.setGraph({
-    rankdir: "TB",
-    nodesep: 30,
-    ranksep: 48,
-    marginx: 16,
-    marginy: 16,
-  });
-  g.setDefaultEdgeLabel(() => ({}));
-  for (const s of visible) {
-    const d = dims.get(s.step.id);
-    if (!d) continue;
-    g.setNode(s.step.id, d);
-  }
-  const visibleIds = new Set(visible.map((s) => s.step.id));
-  for (const s of visible) {
-    const id = s.step.id;
-    for (const p of s.step.parents || []) {
-      if (!visibleIds.has(p)) continue;
-      const childIsDead = !headSet.has(id);
-      g.setEdge(p, id, { dead: childIsDead });
-    }
-  }
-  dagre.layout(g);
-  const gi = g.graph();
-
-  // Pass 4 — size + position.
-  const w = Math.ceil(gi.width ?? 0);
-  const h = Math.ceil(gi.height ?? 0);
-  graphEl.style.width = w + "px";
-  graphEl.style.height = h + "px";
-  svgEl.setAttribute("width", String(w));
-  svgEl.setAttribute("height", String(h));
-  for (const s of visible) {
-    const n = g.node(s.step.id);
-    if (!n) continue;
-    const el = document.getElementById(`pg-card-${cssSafeId(s.step.id)}`);
-    if (!el) continue;
-    el.style.left = n.x - n.width / 2 + "px";
-    el.style.top = n.y - n.height / 2 + "px";
-    el.style.visibility = "visible";
-  }
-
-  // Pass 5 — edges.
-  for (const path of Array.from(svgEl.querySelectorAll("path.path-graph__edge"))) {
-    path.remove();
-  }
-  for (const e of g.edges()) {
-    const edge = g.edge(e) as { points: { x: number; y: number }[]; dead?: boolean };
-    if (!edge?.points?.length) continue;
-    const d = pointsToPath(edge.points);
-    const path = document.createElementNS(NS, "path");
-    path.setAttribute("d", d);
-    path.setAttribute(
-      "class",
-      "path-graph__edge" + (edge.dead ? " path-graph__edge--dead" : ""),
-    );
-    path.setAttribute(
-      "marker-end",
-      edge.dead ? "url(#pg-arrow-dead)" : "url(#pg-arrow)",
-    );
-    svgEl.appendChild(path);
-  }
-
-  // Click delegation
-  nodesEl.onclick = (ev: MouseEvent) => {
-    const target = ev.target as HTMLElement;
-    const toggle = target.closest<HTMLElement>("[data-toggle-branch]");
-    if (toggle) {
-      ev.stopPropagation();
-      const id = toggle.getAttribute("data-toggle-branch")!;
-      opts.onToggleBranch(id);
-      return;
-    }
-    const card = target.closest<HTMLElement>("[data-step-id]");
-    if (!card) return;
-    const id = card.getAttribute("data-step-id")!;
-    const step = stepMap.get(id);
-    if (!step) return;
-    opts.onSelectStep(step, actors);
-  };
-}
diff --git a/crates/toolpath-desktop/frontend/src/main.ts b/crates/toolpath-desktop/frontend/src/main.ts
deleted file mode 100644
index 11ef9fc..0000000
--- a/crates/toolpath-desktop/frontend/src/main.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { mount } from "svelte";
-import App from "./app.svelte";
-import "./styles.css";
-
-const target = document.getElementById("app");
-if (!target) throw new Error("#app not found");
-mount(App, { target });
diff --git a/crates/toolpath-desktop/frontend/src/popover.ts b/crates/toolpath-desktop/frontend/src/popover.ts
deleted file mode 100644
index 3fbee35..0000000
--- a/crates/toolpath-desktop/frontend/src/popover.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { mount } from "svelte";
-import Popover from "./routes/Popover.svelte";
-import "./styles.css";
-
-const target = document.getElementById("popover");
-if (!target) throw new Error("#popover not found");
-mount(Popover, { target });
diff --git a/crates/toolpath-desktop/frontend/src/routes/BrowseAgents.svelte b/crates/toolpath-desktop/frontend/src/routes/BrowseAgents.svelte
deleted file mode 100644
index 87ad3d9..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/BrowseAgents.svelte
+++ /dev/null
@@ -1,60 +0,0 @@
-<script lang="ts">
-  import { store } from "../lib/store.svelte";
-  import type { AgentStatus } from "../lib/types";
-
-  function statusLabel(s: AgentStatus): string {
-    if (s === "available") return "Installed";
-    if (s === "unavailable") return "Not detected";
-    return "Coming soon";
-  }
-  function statusTag(s: AgentStatus): string {
-    if (s === "available") return "tag tag--ok";
-    if (s === "unavailable") return "tag tag--muted";
-    return "tag tag--warn";
-  }
-</script>
-
-<div class="page">
-  <div class="row" style="margin-bottom:14px">
-    <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "NavigateTo", screen: "home" })}>← Back</button>
-  </div>
-
-  <div class="page__header">
-    <div>
-      <div class="page__eyebrow">§1.A · AGENTS</div>
-      <h1 class="page__title">AI coding agents</h1>
-      <p class="page__lede">
-        {store.m.agents.loading ? "Detecting installed agents…" : "Select an installed agent to browse its sessions."}
-        {#if store.m.agents.loading}<span class="spinner"></span>{/if}
-      </p>
-    </div>
-  </div>
-
-  {#if store.m.agents.list === null}
-    <!-- first fetch in-flight -->
-  {:else if store.m.agents.list.length === 0}
-    <div class="notice">No agents known.</div>
-  {:else}
-    <div style="border:0.5px solid var(--ink-5); background:var(--paper-bright)">
-      {#each store.m.agents.list as agent (agent.id)}
-        {@const clickable = agent.status === "available"}
-        <button
-          class={"row-card" + (clickable ? "" : "")}
-          disabled={!clickable}
-          style={!clickable ? "opacity:0.55; cursor:not-allowed" : ""}
-          onclick={() => clickable && store.dispatch({ t: "AgentsSelect", agent })}
-        >
-          <span class="row-card__marker">△</span>
-          <div style="min-width:0">
-            <div class="row-card__title">{agent.name}</div>
-            <div class="row-card__sub">{agent.tagline ?? ""}</div>
-            {#if agent.reason}
-              <div class="row-card__meta"><span>{agent.reason}</span></div>
-            {/if}
-          </div>
-          <span class={statusTag(agent.status)}>{statusLabel(agent.status)}</span>
-        </button>
-      {/each}
-    </div>
-  {/if}
-</div>
diff --git a/crates/toolpath-desktop/frontend/src/routes/BrowseClaude.svelte b/crates/toolpath-desktop/frontend/src/routes/BrowseClaude.svelte
deleted file mode 100644
index 842103c..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/BrowseClaude.svelte
+++ /dev/null
@@ -1,174 +0,0 @@
-<script lang="ts">
-  import { onMount } from "svelte";
-  import { invoke, listen } from "../lib/ipc";
-  import { store } from "../lib/store.svelte";
-  import SourceLogo from "../lib/SourceLogo.svelte";
-  import type { ClaudeProject, ClaudeSession } from "../lib/types";
-
-  let { embedded = false }: { embedded?: boolean } = $props();
-
-  // When embedded (e.g. in Home), there's no NavigateTo("browse-claude") to
-  // seed loadingProjects. Kick it off on mount; the msg is idempotent.
-  onMount(() => {
-    store.dispatch({ t: "ClaudeEnsureProjects" });
-  });
-
-  let subscribed: Promise<void> | null = $state(null);
-  $effect(() => {
-    let active = true;
-    const unlistens: Promise<() => void>[] = [
-      listen<ClaudeProject>("claude:project", (p) => { if (active) store.dispatch({ t: "ClaudeProjectReceived", project: p }); }),
-      listen<unknown>("claude:projects-done", () => { if (active) store.dispatch({ t: "ClaudeProjectsDone" }); }),
-      listen<string>("claude:projects-error", (e) => { if (active) store.dispatch({ t: "ClaudeProjectsError", error: String(e) }); }),
-      listen<ClaudeSession>("claude:session", (s) => { if (active) store.dispatch({ t: "ClaudeSessionReceived", session: s }); }),
-      listen<string>("claude:sessions-done", (path) => { if (active) { pendingSessionStreams.delete(path); store.dispatch({ t: "ClaudeSessionsDone", path }); } }),
-      listen<string>("claude:sessions-error", (e) => { if (active) store.dispatch({ t: "Error", error: String(e) }); }),
-    ];
-    subscribed = Promise.all(unlistens).then(() => {});
-    return () => {
-      active = false;
-      for (const u of unlistens) u.then((fn) => fn());
-      subscribed = null;
-    };
-  });
-
-  let projectsInvoked = false;
-  $effect(() => {
-    const loading = store.m.claude.loadingProjects;
-    if (loading && !projectsInvoked) {
-      projectsInvoked = true;
-      (async () => {
-        try {
-          if (subscribed) await subscribed;
-          await invoke("list_claude_projects_stream");
-        } catch (e) {
-          store.dispatch({ t: "ClaudeProjectsError", error: String(e) });
-        }
-      })();
-    } else if (!loading) {
-      projectsInvoked = false;
-    }
-  });
-
-  const pendingSessionStreams = new Set<string>();
-  $effect(() => {
-    const loadingMap = store.m.claude.sessionsLoading;
-    for (const path of Object.keys(loadingMap)) {
-      if (!loadingMap[path] || pendingSessionStreams.has(path)) continue;
-      pendingSessionStreams.add(path);
-      (async () => {
-        try {
-          if (subscribed) await subscribed;
-          await invoke("list_claude_sessions_stream", { projectPath: path });
-        } catch (e) {
-          pendingSessionStreams.delete(path);
-          store.dispatch({ t: "Error", error: String(e) });
-        }
-      })();
-    }
-  });
-
-  function fmtTime(iso: string | null): string {
-    if (!iso) return "—";
-    const d = new Date(iso);
-    if (isNaN(d.getTime())) return iso;
-    const diff = (Date.now() - d.getTime()) / 1000;
-    if (diff < 60) return Math.round(diff) + "s ago";
-    if (diff < 3600) return Math.round(diff / 60) + "m ago";
-    if (diff < 86400) return Math.round(diff / 3600) + "h ago";
-    if (diff < 86400 * 7) return Math.round(diff / 86400) + "d ago";
-    return d.toISOString().slice(0, 10);
-  }
-
-  const claude = $derived(store.m.claude);
-  const projectCount = $derived(claude.projects.length);
-</script>
-
-<div class:page={!embedded}>
-  {#if !embedded}
-    <div class="row" style="margin-bottom:14px">
-      <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "NavigateTo", screen: "home" })}>← Back</button>
-    </div>
-
-    <div class="page__header">
-      <div>
-        <div class="page__eyebrow">§1.1 · CLAUDE CODE · SESSIONS</div>
-        <h1 class="page__title">Claude Code</h1>
-        <p class="page__lede">
-          {#if projectCount === 0 && claude.loadingProjects}
-            Scanning <code>~/.claude/projects/</code> …
-          {:else}
-            {projectCount} project{projectCount === 1 ? "" : "s"}{claude.loadingProjects ? " — still scanning …" : ""}
-          {/if}
-          {#if claude.loadingProjects}<span class="spinner"></span>{/if}
-        </p>
-      </div>
-    </div>
-  {/if}
-
-  {#if projectCount === 0 && claude.projectsDone}
-    <div class="notice">No Claude projects found. Use Claude Code at least once and come back.</div>
-  {:else}
-    <div style="border:0.5px solid var(--ink-5); background:var(--paper-bright)">
-      {#each claude.projects as p (p.project_path)}
-        {@const isExpanded = claude.expanded === p.project_path}
-        {@const projectTitle = claude.projectTitles[p.project_path]}
-        <div>
-          <button
-            class={"row-card" + (isExpanded ? " row-card--selected" : "")}
-            onclick={() => store.dispatch({ t: "ClaudeExpandProject", path: p.project_path })}
-          >
-            <span class="row-card__marker"><SourceLogo kind="claude" size={14} /></span>
-            <div style="min-width:0">
-              <div class="row-card__title">{projectTitle ?? p.display_name}</div>
-              <div class="row-card__sub">{p.project_path}</div>
-            </div>
-            <div class="row-card__right">
-              {p.session_count} session{p.session_count === 1 ? "" : "s"}
-            </div>
-          </button>
-          {#if isExpanded}
-            {@const sessions = claude.sessionsByPath[p.project_path] ?? []}
-            {@const loading = claude.sessionsLoading[p.project_path]}
-            <div class="row-card__children">
-              {#if sessions.length === 0 && loading}
-                <div style="padding:12px 18px; font-family:var(--font-mono); font-size:11px; color:var(--ink-3); letter-spacing:0.05em">
-                  Loading sessions… <span class="spinner"></span>
-                </div>
-              {:else if sessions.length === 0}
-                <div style="padding:12px 18px"><div class="notice">No sessions in this project.</div></div>
-              {:else}
-                {#each sessions as s (s.session_id)}
-                  {@const title = claude.titles[`${p.project_path}|${s.session_id}`]}
-                  <div class="row-card" style="padding-left:36px; cursor:default">
-                    <span class="row-card__marker"></span>
-                    <div style="min-width:0">
-                      <div class="row-card__title">
-                        {#if title}{title}{:else}<span class="row-card__sub">loading title…</span>{/if}
-                      </div>
-                      <div class="row-card__meta">
-                        <span>{s.turn_count} turn{s.turn_count === 1 ? "" : "s"}</span>
-                        <span>{fmtTime(s.last_activity)}</span>
-                        <span>{s.session_id.slice(0, 8)}</span>
-                      </div>
-                    </div>
-                    <button
-                      class="btn btn--accent btn--sm"
-                      disabled={claude.deriving}
-                      onclick={() => store.dispatch({ t: "ClaudeDerive", path: p.project_path, sid: s.session_id })}
-                    >{claude.deriving ? "Deriving…" : "Select →"}</button>
-                  </div>
-                {/each}
-                {#if loading}
-                  <div style="padding:10px 18px; font-family:var(--font-mono); font-size:11px; color:var(--ink-3)">
-                    Still loading… <span class="spinner"></span>
-                  </div>
-                {/if}
-              {/if}
-            </div>
-          {/if}
-        </div>
-      {/each}
-    </div>
-  {/if}
-</div>
diff --git a/crates/toolpath-desktop/frontend/src/routes/BrowseGit.svelte b/crates/toolpath-desktop/frontend/src/routes/BrowseGit.svelte
deleted file mode 100644
index 00ebca9..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/BrowseGit.svelte
+++ /dev/null
@@ -1,92 +0,0 @@
-<script lang="ts">
-  import { store } from "../lib/store.svelte";
-  import SourceLogo from "../lib/SourceLogo.svelte";
-  let { embedded = false }: { embedded?: boolean } = $props();
-  const git = $derived(store.m.git);
-</script>
-
-<div class:page={!embedded}>
-  {#if !embedded}
-    <div class="row" style="margin-bottom:14px">
-      <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "NavigateTo", screen: "home" })}>← Back</button>
-    </div>
-
-    <div class="page__header">
-      <div>
-        <div class="page__eyebrow">§1.3 · GIT · LOCAL REPOSITORY</div>
-        <h1 class="page__title">Local git repository</h1>
-        <p class="page__lede">
-          Point to a repo and pick a branch. History on that branch becomes the
-          derived Path document.
-        </p>
-      </div>
-    </div>
-  {/if}
-
-  <div class="section-label">
-    <span class="section-label__num">§1.3.1 ·</span>
-    <span class="section-label__text">Source</span>
-    <span class="section-label__right">path list git</span>
-  </div>
-
-  <div class="card-panel">
-    <label class="page__eyebrow" for="repo-path">Repo path</label>
-    <div class="row" style="margin-top:6px">
-      <input
-        class="input"
-        id="repo-path"
-        type="text"
-        placeholder="/Users/you/project"
-        value={git.repoPath}
-        oninput={(ev) => store.dispatch({ t: "GitSetRepoPath", value: (ev.target as HTMLInputElement).value })}
-        onkeydown={(ev) => { if (ev.key === "Enter") store.dispatch({ t: "GitLoadBranches" }); }}
-      />
-      <button class="btn" onclick={() => store.dispatch({ t: "GitPickRepo" })}>Browse…</button>
-      <button
-        class="btn btn--primary"
-        disabled={!git.repoPath || git.loading}
-        onclick={() => store.dispatch({ t: "GitLoadBranches" })}
-      >{git.loading ? "Loading…" : "Load branches"}</button>
-    </div>
-  </div>
-
-  {#if git.branches !== null && git.branches.length > 0}
-    <div class="section-label" style="margin-top:22px">
-      <span class="section-label__num">§1.3.2 ·</span>
-      <span class="section-label__text">Branches</span>
-      <span class="section-label__right">{git.branches.length} refs</span>
-    </div>
-    <div style="border:0.5px solid var(--ink-5); background:var(--paper-bright)">
-      {#each git.branches as b (b.name)}
-        <button
-          class={"row-card" + (git.selected === b.name ? " row-card--selected" : "")}
-          onclick={() => store.dispatch({ t: "GitSelectBranch", name: b.name })}
-        >
-          <span class="row-card__marker" style="color:#f05133"><SourceLogo kind="git" size={14} /></span>
-          <div style="min-width:0">
-            <div class="row-card__title">{b.name}</div>
-            <div class="row-card__sub">{b.subject || "(no subject)"}</div>
-            <div class="row-card__meta">
-              <span>HEAD {b.head_short}</span>
-              <span>@{b.author}</span>
-            </div>
-          </div>
-          <span class="row-card__right">{b.timestamp}</span>
-        </button>
-      {/each}
-    </div>
-  {:else if git.branches !== null}
-    <div class="notice" style="margin-top:18px">No branches found in this repo.</div>
-  {:else}
-    <div class="notice" style="margin-top:18px">No branches loaded yet.</div>
-  {/if}
-
-  <div class="row" style="margin-top:18px">
-    <span class="spacer"></span>
-    <button
-      class="btn btn--accent"
-      disabled={!git.selected || git.deriving}
-      onclick={() => store.dispatch({ t: "GitDerive" })}
-    >{git.deriving ? "Deriving…" : "Preview →"}</button>
-  </div>
-</div>
diff --git a/crates/toolpath-desktop/frontend/src/routes/BrowseGithub.svelte b/crates/toolpath-desktop/frontend/src/routes/BrowseGithub.svelte
deleted file mode 100644
index 4423f64..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/BrowseGithub.svelte
+++ /dev/null
@@ -1,120 +0,0 @@
-<script lang="ts">
-  import { onMount } from "svelte";
-  import { store } from "../lib/store.svelte";
-  let { embedded = false }: { embedded?: boolean } = $props();
-
-  // When embedded, there's no NavigateTo("browse-github") to probe the
-  // keychain. Do it on mount; idempotent.
-  onMount(() => {
-    store.dispatch({ t: "GithubEnsureTokenStatus" });
-  });
-
-  const gh = $derived(store.m.github);
-</script>
-
-<div class:page={!embedded}>
-  {#if !embedded}
-    <div class="row" style="margin-bottom:14px">
-      <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "NavigateTo", screen: "home" })}>← Back</button>
-    </div>
-
-    <div class="page__header">
-      <div>
-        <div class="page__eyebrow">§1.4 · GITHUB · PULL REQUEST</div>
-        <h1 class="page__title">GitHub pull request</h1>
-        <p class="page__lede">
-          Paste a PR URL. We fetch commits, reviews, and CI checks, then render
-          the derived trace.
-        </p>
-      </div>
-    </div>
-  {/if}
-
-  <div class="section-label">
-    <span class="section-label__num">§1.4.1 ·</span>
-    <span class="section-label__text">Token</span>
-    <span class="section-label__right">OS keychain</span>
-  </div>
-
-  {#if gh.hasToken === null}
-    <div class="notice">Checking keychain… <span class="spinner"></span></div>
-  {:else if gh.editingToken || !gh.hasToken}
-    <div class="card-panel">
-      <label class="page__eyebrow" for="token">GitHub personal access token</label>
-      <div class="row" style="margin-top:6px">
-        <input
-          class="input"
-          id="token"
-          type="password"
-          placeholder="ghp_…"
-          value={gh.tokenInput}
-          oninput={(ev) => store.dispatch({ t: "GithubSetTokenInput", value: (ev.target as HTMLInputElement).value })}
-        />
-        <button
-          class="btn btn--primary"
-          disabled={!gh.tokenInput.trim() || gh.savingToken}
-          onclick={() => store.dispatch({ t: "GithubSaveToken" })}
-        >{gh.savingToken ? "Saving…" : "Save to keychain"}</button>
-        {#if gh.hasToken}
-          <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "GithubEditToken", on: false })}>Cancel</button>
-        {/if}
-      </div>
-      <div style="font-family:var(--font-mono); font-size:10.5px; color:var(--ink-4); letter-spacing:0.06em; margin-top:8px">
-        Stored under <span class="kbd">dev.pathbase.toolpath-desktop</span>.
-      </div>
-    </div>
-  {:else}
-    <div class="card-panel" style="display:flex; align-items:center; gap:10px">
-      <span class="tag tag--ok">◇ Token set</span>
-      <span class="spacer"></span>
-      <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "GithubEditToken", on: true })}>Update</button>
-      <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "GithubClearToken" })}>Remove</button>
-    </div>
-  {/if}
-
-  <div class="section-label" style="margin-top:22px">
-    <span class="section-label__num">§1.4.2 ·</span>
-    <span class="section-label__text">Pull request URL</span>
-    <span class="section-label__right">path derive github</span>
-  </div>
-
-  <div class="card-panel">
-    <input
-      class="input"
-      id="pr-url"
-      type="url"
-      placeholder="https://github.com/owner/repo/pull/42"
-      value={gh.url}
-      oninput={(ev) => store.dispatch({ t: "GithubSetUrl", value: (ev.target as HTMLInputElement).value })}
-    />
-    <div class="row" style="margin-top:10px; gap:18px">
-      <label style="display:inline-flex; gap:6px; align-items:center; font-family:var(--font-mono); font-size:11px; color:var(--ink-3); letter-spacing:0.06em; text-transform:uppercase">
-        <input
-          type="checkbox"
-          class="checkbox"
-          checked={gh.includeCi}
-          onchange={() => store.dispatch({ t: "GithubToggleIncludeCi" })}
-        />
-        Include CI checks
-      </label>
-      <label style="display:inline-flex; gap:6px; align-items:center; font-family:var(--font-mono); font-size:11px; color:var(--ink-3); letter-spacing:0.06em; text-transform:uppercase">
-        <input
-          type="checkbox"
-          class="checkbox"
-          checked={gh.includeComments}
-          onchange={() => store.dispatch({ t: "GithubToggleComments" })}
-        />
-        Include reviews &amp; comments
-      </label>
-    </div>
-  </div>
-
-  <div class="row" style="margin-top:18px">
-    <span class="spacer"></span>
-    <button
-      class="btn btn--accent"
-      disabled={!gh.url || !gh.hasToken || gh.deriving}
-      onclick={() => store.dispatch({ t: "GithubDerive" })}
-    >{gh.deriving ? "Fetching…" : "Preview →"}</button>
-  </div>
-</div>
diff --git a/crates/toolpath-desktop/frontend/src/routes/BrowsePi.svelte b/crates/toolpath-desktop/frontend/src/routes/BrowsePi.svelte
deleted file mode 100644
index 2273d82..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/BrowsePi.svelte
+++ /dev/null
@@ -1,186 +0,0 @@
-<script lang="ts">
-  import { onMount } from "svelte";
-  import { invoke, listen } from "../lib/ipc";
-  import { store } from "../lib/store.svelte";
-  import { dbg } from "../lib/debug";
-  import SourceLogo from "../lib/SourceLogo.svelte";
-  import type { PiProject, PiSession } from "../lib/types";
-
-  let { embedded = false }: { embedded?: boolean } = $props();
-
-  // When embedded, there's no NavigateTo("browse-pi") to seed loading. Kick
-  // it off on mount; the msg is idempotent.
-  onMount(() => {
-    store.dispatch({ t: "PiEnsureProjects" });
-  });
-
-  // Permanent subscriptions — `onMount` runs exactly once per component
-  // mount, so unlike `$effect` there's no way for Svelte's reactivity
-  // graph to re-fire it and stack duplicate listeners.
-  let subscribed: Promise<void> | null = null;
-  let active = true;
-  const pendingSessionStreams = new Set<string>();
-
-  onMount(() => {
-    dbg("browse-pi", "mount");
-    active = true;
-    const unlistens: Promise<() => void>[] = [
-      listen<PiProject>("pi:project", (p) => { if (active) store.dispatch({ t: "PiProjectReceived", project: p }); }),
-      listen<unknown>("pi:projects-done", () => { if (active) store.dispatch({ t: "PiProjectsDone" }); }),
-      listen<string>("pi:projects-error", (e) => { if (active) store.dispatch({ t: "PiProjectsError", error: String(e) }); }),
-      listen<PiSession>("pi:session", (s) => { if (active) store.dispatch({ t: "PiSessionReceived", session: s }); }),
-      listen<string>("pi:sessions-done", (path) => { if (active) { pendingSessionStreams.delete(path); store.dispatch({ t: "PiSessionsDone", path }); } }),
-      listen<string>("pi:sessions-error", (e) => { if (active) store.dispatch({ t: "Error", error: String(e) }); }),
-    ];
-    subscribed = Promise.all(unlistens).then(() => {
-      dbg("browse-pi", "subs live");
-    });
-    return () => {
-      dbg("browse-pi", "unmount");
-      active = false;
-      for (const u of unlistens) u.then((fn) => fn());
-      subscribed = null;
-    };
-  });
-
-  // Fire the projects invoke on the first transition of loadingProjects
-  // into `true`. The effect re-runs on every dispatch (Svelte deep
-  // reactivity replaces the proxy tree), but the guard means we only
-  // invoke once per load cycle.
-  let projectsInvoked = false;
-  $effect(() => {
-    const loading = store.m.pi.loadingProjects;
-    if (loading && !projectsInvoked) {
-      projectsInvoked = true;
-      (async () => {
-        try {
-          if (subscribed) await subscribed;
-          await invoke("list_pi_projects_stream");
-        } catch (e) {
-          store.dispatch({ t: "PiProjectsError", error: String(e) });
-        }
-      })();
-    } else if (!loading) {
-      projectsInvoked = false;
-    }
-  });
-
-  // Per-project session streams: dedupe by path. Fires the invoke when a
-  // path first appears with loading=true. `pendingSessionStreams` is
-  // declared at the top of the script with the other mount-lifetime state.
-  $effect(() => {
-    const loadingMap = store.m.pi.sessionsLoading;
-    for (const path of Object.keys(loadingMap)) {
-      if (!loadingMap[path] || pendingSessionStreams.has(path)) continue;
-      pendingSessionStreams.add(path);
-      (async () => {
-        try {
-          if (subscribed) await subscribed;
-          await invoke("list_pi_sessions_stream", { projectPath: path });
-        } catch (e) {
-          pendingSessionStreams.delete(path);
-          store.dispatch({ t: "Error", error: String(e) });
-        }
-      })();
-    }
-  });
-
-  function fmtTime(iso: string | null): string {
-    if (!iso) return "—";
-    const d = new Date(iso);
-    if (isNaN(d.getTime())) return iso;
-    const diff = (Date.now() - d.getTime()) / 1000;
-    if (diff < 60) return Math.round(diff) + "s ago";
-    if (diff < 3600) return Math.round(diff / 60) + "m ago";
-    if (diff < 86400) return Math.round(diff / 3600) + "h ago";
-    if (diff < 86400 * 7) return Math.round(diff / 86400) + "d ago";
-    return d.toISOString().slice(0, 10);
-  }
-
-  const pi = $derived(store.m.pi);
-  const projectCount = $derived(pi.projects.length);
-</script>
-
-<div class:page={!embedded}>
-  {#if !embedded}
-    <div class="row" style="margin-bottom:14px">
-      <button class="btn btn--ghost" onclick={() => store.dispatch({ t: "NavigateTo", screen: "home" })}>← Back</button>
-    </div>
-
-    <div class="page__header">
-      <div>
-        <div class="page__eyebrow">§1.2 · PI.DEV · CONVERSATIONS</div>
-        <h1 class="page__title">Pi.dev</h1>
-        <p class="page__lede">
-          {#if projectCount === 0 && pi.loadingProjects}
-            Scanning <code>~/.pi/agent/sessions/</code> …
-          {:else}
-            {projectCount} project{projectCount === 1 ? "" : "s"}{pi.loadingProjects ? " — still scanning …" : ""}
-          {/if}
-          {#if pi.loadingProjects}<span class="spinner"></span>{/if}
-        </p>
-      </div>
-    </div>
-  {/if}
-
-  {#if projectCount === 0 && pi.projectsDone}
-    <div class="notice">No pi.dev projects found. Run a pi.dev session and come back.</div>
-  {:else}
-    <div style="border:0.5px solid var(--ink-5); background:var(--paper-bright)">
-      {#each pi.projects as p (p.project_path)}
-        {@const isExpanded = pi.expanded === p.project_path}
-        <div>
-          <button
-            class={"row-card" + (isExpanded ? " row-card--selected" : "")}
-            onclick={() => store.dispatch({ t: "PiExpandProject", path: p.project_path })}
-          >
-            <span class="row-card__marker row-card__marker--water"><SourceLogo kind="pi" size={14} /></span>
-            <div style="min-width:0">
-              <div class="row-card__title">{p.display_name}</div>
-              <div class="row-card__sub">{p.project_path}</div>
-            </div>
-            <div class="row-card__right">
-              {p.session_count} session{p.session_count === 1 ? "" : "s"}
-            </div>
-          </button>
-          {#if isExpanded}
-            {@const sessions = pi.sessionsByPath[p.project_path] ?? []}
-            {@const loading = pi.sessionsLoading[p.project_path]}
-            <div class="row-card__children">
-              {#if sessions.length === 0 && loading}
-                <div style="padding:12px 18px; font-family:var(--font-mono); font-size:11px; color:var(--ink-3)">
-                  Loading sessions… <span class="spinner"></span>
-                </div>
-              {:else if sessions.length === 0}
-                <div style="padding:12px 18px"><div class="notice">No sessions in this project.</div></div>
-              {:else}
-                {#each sessions as s (s.session_id)}
-                  <div class="row-card" style="padding-left:36px; cursor:default">
-                    <span class="row-card__marker"></span>
-                    <div style="min-width:0">
-                      <div class="row-card__title">{s.session_id}</div>
-                      <div class="row-card__meta">
-                        <span>{s.entry_count} entr{s.entry_count === 1 ? "y" : "ies"}</span>
-                        <span>{fmtTime(s.timestamp)}</span>
-                      </div>
-                    </div>
-                    <button
-                      class="btn btn--accent btn--sm"
-                      disabled={pi.deriving}
-                      onclick={() => store.dispatch({ t: "PiDerive", path: p.project_path, sid: s.session_id })}
-                    >{pi.deriving ? "Deriving…" : "Select →"}</button>
-                  </div>
-                {/each}
-                {#if loading}
-                  <div style="padding:10px 18px; font-family:var(--font-mono); font-size:11px; color:var(--ink-3)">
-                    Still loading… <span class="spinner"></span>
-                  </div>
-                {/if}
-              {/if}
-            </div>
-          {/if}
-        </div>
-      {/each}
-    </div>
-  {/if}
-</div>
diff --git a/crates/toolpath-desktop/frontend/src/routes/Home.svelte b/crates/toolpath-desktop/frontend/src/routes/Home.svelte
deleted file mode 100644
index 21fc083..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/Home.svelte
+++ /dev/null
@@ -1,59 +0,0 @@
-<script lang="ts">
-    import SourceLogo from "../lib/SourceLogo.svelte";
-    import BrowseClaude from "./BrowseClaude.svelte";
-    import BrowsePi from "./BrowsePi.svelte";
-    import BrowseGit from "./BrowseGit.svelte";
-    import BrowseGithub from "./BrowseGithub.svelte";
-
-    // Four source types, mirroring the cartographic source-picker tabs in the
-    // design. Each tab reveals the live browse view for that source.
-    type SourceKind = "claude" | "pi" | "git" | "github";
-    const SOURCES: { k: SourceKind; label: string }[] = [
-        { k: "claude", label: "Claude Code" },
-        { k: "pi", label: "Pi.dev" },
-        { k: "git", label: "Git" },
-        { k: "github", label: "GitHub PR" },
-    ];
-
-    let active: SourceKind = $state("claude");
-</script>
-
-<div class="page">
-    <!-- Source-type tabs -->
-    <div class="section-label">
-        <span class="section-label__num">§1 ·</span>
-        <span class="section-label__text">Select a source</span>
-        <span class="section-label__right">path list {active}</span>
-    </div>
-
-    <div class="source-tabs" role="tablist">
-        {#each SOURCES as s (s.k)}
-            <button
-                role="tab"
-                aria-selected={active === s.k}
-                class={"source-tabs__item" +
-                    (active === s.k ? " source-tabs__item--active" : "")}
-                onclick={() => {
-                    active = s.k;
-                }}
-            >
-                <span class="source-tabs__glyph">
-                    <SourceLogo kind={s.k} size={18} />
-                </span>
-                <span class="source-tabs__label">{s.label}</span>
-                <span class="source-tabs__count">LIVE</span>
-            </button>
-        {/each}
-    </div>
-
-    <!-- Inline browse view for the active source -->
-    {#if active === "claude"}
-        <BrowseClaude embedded />
-    {:else if active === "pi"}
-        <BrowsePi embedded />
-    {:else if active === "git"}
-        <BrowseGit embedded />
-    {:else if active === "github"}
-        <BrowseGithub embedded />
-    {/if}
-</div>
diff --git a/crates/toolpath-desktop/frontend/src/routes/Popover.svelte b/crates/toolpath-desktop/frontend/src/routes/Popover.svelte
deleted file mode 100644
index 228f62e..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/Popover.svelte
+++ /dev/null
@@ -1,376 +0,0 @@
-<script lang="ts">
-    import { invoke, listen } from "../lib/ipc";
-    import type { UnlistenFn } from "@tauri-apps/api/event";
-
-    type Provider = "claude" | "gemini" | "codex" | "opencode" | "pi";
-
-    type ProviderCounts = {
-        provider: Provider;
-        active: number;
-        recent: number;
-    };
-
-    type RecentSession = {
-        provider: Provider;
-        project: string;
-        session_id: string;
-        last_activity: string;
-    };
-
-    type TrayStats = {
-        counts: ProviderCounts[];
-        recent: RecentSession[];
-        total_active: number;
-        total_recent: number;
-        polled_at: string;
-    };
-
-    let stats = $state<TrayStats | null>(null);
-
-    // Fetch an immediate snapshot so the UI isn't blank on first open.
-    invoke<TrayStats>("tray_stats_now")
-        .then((s) => (stats = s))
-        .catch(() => {});
-
-    $effect(() => {
-        let unlisten: UnlistenFn | undefined;
-        listen<TrayStats>("tray:stats", (payload) => {
-            stats = payload;
-        }).then((fn) => (unlisten = fn));
-        return () => unlisten?.();
-    });
-
-    // "Claude Code · myproj"
-    function sessionLabel(r: RecentSession): string {
-        const name = r.project ? basename(r.project) : r.session_id.slice(0, 8);
-        return `${providerName(r.provider)} · ${name}`;
-    }
-
-    function providerName(p: Provider): string {
-        switch (p) {
-            case "claude":
-                return "Claude";
-            case "gemini":
-                return "Gemini";
-            case "codex":
-                return "Codex";
-            case "opencode":
-                return "opencode";
-            case "pi":
-                return "pi.dev";
-        }
-    }
-
-    function basename(path: string): string {
-        const parts = path.split(/[/\\]/).filter(Boolean);
-        return parts[parts.length - 1] ?? path;
-    }
-
-    function ago(iso: string): string {
-        const then = new Date(iso).getTime();
-        if (!isFinite(then)) return "";
-        const sec = Math.max(0, Math.floor((Date.now() - then) / 1000));
-        if (sec < 60) return `${sec}s ago`;
-        const min = Math.floor(sec / 60);
-        if (min < 60) return `${min}m ago`;
-        const hr = Math.floor(min / 60);
-        if (hr < 24) return `${hr}h ago`;
-        const day = Math.floor(hr / 24);
-        return `${day}d ago`;
-    }
-
-    async function openMain() {
-        await invoke("tray_open_main");
-    }
-
-    async function dismiss() {
-        const { getCurrentWindow } = await import("@tauri-apps/api/window");
-        await getCurrentWindow().hide();
-    }
-
-    // Providers whose derive command is wired up on the Rust side.
-    // Others show in the list (for activity-tracking) but don't open.
-    const SUPPORTED: ReadonlySet<Provider> = new Set<Provider>(["claude", "pi"]);
-
-    let openError = $state<string | null>(null);
-
-    async function openTrace(r: RecentSession) {
-        if (!SUPPORTED.has(r.provider)) return;
-        openError = null;
-        try {
-            await invoke("tray_open_trace", {
-                provider: r.provider,
-                project: r.project,
-                sessionId: r.session_id,
-            });
-        } catch (e) {
-            openError = String(e);
-        }
-    }
-</script>
-
-<div class="quick">
-    <header class="quick__header">
-        <span class="quick__title">Quick View</span>
-        {#if stats}
-            <span class="quick__meta"
-                >{stats.total_active} active · {stats.total_recent} recent</span
-            >
-        {:else}
-            <span class="quick__meta">loading…</span>
-        {/if}
-    </header>
-
-    {#if stats}
-        <ul class="quick__counts">
-            {#each stats.counts as c (c.provider)}
-                <li class="quick__count">
-                    <span class="quick__count-name">{providerName(c.provider)}</span>
-                    <span class="quick__count-active" class:on={c.active > 0}
-                        >● {c.active}</span
-                    >
-                    <span class="quick__count-recent">{c.recent} today</span>
-                </li>
-            {/each}
-        </ul>
-
-        <div class="quick__section-label">Recent</div>
-        <ul class="quick__recent">
-            {#if stats.recent.length === 0}
-                <li class="quick__empty">No recent activity.</li>
-            {/if}
-            {#each stats.recent as r (r.provider + ":" + r.session_id)}
-                {@const supported = SUPPORTED.has(r.provider)}
-                <li class="quick__session">
-                    <button
-                        class="quick__session-btn"
-                        class:quick__session-btn--disabled={!supported}
-                        disabled={!supported}
-                        title={supported
-                            ? "Open in Toolpath"
-                            : `Opening ${providerName(r.provider)} traces from Quick View is coming soon.`}
-                        onclick={() => openTrace(r)}
-                    >
-                        <span class="quick__session-label">{sessionLabel(r)}</span>
-                        <span class="quick__session-when">{ago(r.last_activity)}</span>
-                    </button>
-                </li>
-            {/each}
-        </ul>
-
-        {#if openError}
-            <div class="quick__open-error" role="alert">{openError}</div>
-        {/if}
-    {/if}
-
-    <footer class="quick__footer">
-        <button class="quick__btn quick__btn--primary" onclick={openMain}
-            >Open Toolpath</button
-        >
-        <button class="quick__btn" onclick={dismiss}>Close</button>
-        <span class="quick__spacer"></span>
-        {#if stats}
-            <span class="quick__polled" title={stats.polled_at}
-                >updated {ago(stats.polled_at)}</span
-            >
-        {/if}
-    </footer>
-</div>
-
-<style>
-    :global(html, body) {
-        margin: 0;
-        padding: 0;
-        background: transparent;
-        font-family:
-            -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui,
-            sans-serif;
-        font-size: 12px;
-        color: #1d1d1f;
-    }
-    :global(html[data-theme="dark"]),
-    :global(html[data-theme="dark"] body) {
-        color: #f2f2f2;
-    }
-
-    .quick {
-        display: flex;
-        flex-direction: column;
-        height: 100vh;
-        padding: 10px 12px;
-        box-sizing: border-box;
-        background: rgba(250, 250, 250, 0.98);
-        border-radius: 10px;
-    }
-    :global(html[data-theme="dark"]) .quick {
-        background: rgba(30, 30, 32, 0.98);
-    }
-
-    .quick__header {
-        display: flex;
-        align-items: baseline;
-        justify-content: space-between;
-        margin-bottom: 8px;
-    }
-    .quick__title {
-        font-weight: 600;
-        font-size: 13px;
-    }
-    .quick__meta {
-        font-size: 11px;
-        opacity: 0.7;
-    }
-
-    .quick__counts {
-        list-style: none;
-        padding: 0;
-        margin: 0 0 10px 0;
-        border-top: 1px solid rgba(0, 0, 0, 0.08);
-        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
-    }
-    :global(html[data-theme="dark"]) .quick__counts {
-        border-top-color: rgba(255, 255, 255, 0.1);
-        border-bottom-color: rgba(255, 255, 255, 0.1);
-    }
-    .quick__count {
-        display: grid;
-        grid-template-columns: 1fr auto auto;
-        gap: 10px;
-        padding: 4px 2px;
-        font-variant-numeric: tabular-nums;
-    }
-    .quick__count-active {
-        opacity: 0.35;
-    }
-    .quick__count-active.on {
-        opacity: 1;
-        color: #1f9e4e;
-    }
-    .quick__count-recent {
-        opacity: 0.7;
-    }
-
-    .quick__section-label {
-        font-size: 10px;
-        text-transform: uppercase;
-        letter-spacing: 0.08em;
-        opacity: 0.55;
-        margin-bottom: 4px;
-    }
-    .quick__recent {
-        list-style: none;
-        padding: 0;
-        margin: 0;
-        flex: 1;
-        overflow-y: auto;
-    }
-    .quick__empty {
-        opacity: 0.5;
-        padding: 12px 0;
-        text-align: center;
-    }
-    .quick__session {
-        list-style: none;
-    }
-    .quick__session-btn {
-        display: flex;
-        width: 100%;
-        align-items: center;
-        justify-content: space-between;
-        padding: 4px 6px;
-        margin: 1px 0;
-        border: 0;
-        background: transparent;
-        border-radius: 4px;
-        color: inherit;
-        font: inherit;
-        text-align: left;
-        cursor: pointer;
-    }
-    .quick__session-btn:hover:not(:disabled) {
-        background: rgba(0, 0, 0, 0.06);
-    }
-    :global(html[data-theme="dark"]) .quick__session-btn:hover:not(:disabled) {
-        background: rgba(255, 255, 255, 0.08);
-    }
-    .quick__session-btn--disabled {
-        cursor: not-allowed;
-        opacity: 0.55;
-    }
-    .quick__session-label {
-        overflow: hidden;
-        text-overflow: ellipsis;
-        white-space: nowrap;
-        padding-right: 8px;
-    }
-    .quick__session-when {
-        font-size: 10px;
-        opacity: 0.6;
-        flex-shrink: 0;
-    }
-    .quick__open-error {
-        margin-top: 6px;
-        padding: 5px 7px;
-        font-size: 11px;
-        color: #b00020;
-        background: rgba(176, 0, 32, 0.08);
-        border-radius: 4px;
-    }
-    :global(html[data-theme="dark"]) .quick__open-error {
-        color: #ff8b9b;
-        background: rgba(255, 139, 155, 0.12);
-    }
-
-    .quick__footer {
-        display: flex;
-        align-items: center;
-        margin-top: 8px;
-        padding-top: 6px;
-        border-top: 1px solid rgba(0, 0, 0, 0.08);
-    }
-    :global(html[data-theme="dark"]) .quick__footer {
-        border-top-color: rgba(255, 255, 255, 0.1);
-    }
-    .quick__btn {
-        font: inherit;
-        padding: 3px 10px;
-        margin-right: 6px;
-        border: 1px solid rgba(0, 0, 0, 0.15);
-        background: transparent;
-        border-radius: 6px;
-        cursor: pointer;
-        color: inherit;
-    }
-    .quick__btn:hover {
-        background: rgba(0, 0, 0, 0.05);
-    }
-    .quick__btn--primary {
-        background: #1d1d1f;
-        color: #fff;
-        border-color: #1d1d1f;
-    }
-    .quick__btn--primary:hover {
-        background: #000;
-    }
-    :global(html[data-theme="dark"]) .quick__btn {
-        border-color: rgba(255, 255, 255, 0.2);
-    }
-    :global(html[data-theme="dark"]) .quick__btn:hover {
-        background: rgba(255, 255, 255, 0.08);
-    }
-    :global(html[data-theme="dark"]) .quick__btn--primary {
-        background: #f2f2f2;
-        color: #1d1d1f;
-        border-color: #f2f2f2;
-    }
-    :global(html[data-theme="dark"]) .quick__btn--primary:hover {
-        background: #fff;
-    }
-    .quick__spacer {
-        flex: 1;
-    }
-    .quick__polled {
-        font-size: 10px;
-        opacity: 0.55;
-    }
-</style>
diff --git a/crates/toolpath-desktop/frontend/src/routes/Preview.svelte b/crates/toolpath-desktop/frontend/src/routes/Preview.svelte
deleted file mode 100644
index a14404a..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/Preview.svelte
+++ /dev/null
@@ -1,305 +0,0 @@
-<script lang="ts">
-  import { onMount, tick } from "svelte";
-  import { render as renderViz } from "../lib/viz";
-  import { store } from "../lib/store.svelte";
-  import { perfMark, perfEnd } from "../lib/perf.svelte";
-  import StepTree from "../lib/StepTree.svelte";
-  import ChatView from "../lib/ChatView.svelte";
-  import type { StepRef } from "../lib/types";
-
-  let canvasEl: HTMLDivElement | null = $state(null);
-
-  // Perf: mark the instant this component mounts after a derive. The first
-  // post-derive render is the most useful measurement — subsequent re-renders
-  // (toggles, zoom, selection) don't reset the trace.
-  let perfDone = $state(false);
-  onMount(() => {
-    perfMark("preview-mounted");
-    // Tick once so the initial render has committed before marking "first
-    // paint". This covers static markup + StepTree + (Chat OR the empty graph
-    // canvas). The viz $effect below marks again after dagre lays out.
-    void tick().then(() => {
-      if (!perfDone) {
-        perfMark("dom-painted");
-        // If we're in chat mode there's no separate viz step, so close the
-        // trace here. Graph mode closes it in the viz $effect.
-        if (store.m.preview?.viewMode === "chat") {
-          perfEnd();
-          perfDone = true;
-        }
-      }
-    });
-  });
-
-  // Graph-view zoom. Wheel/pinch with ctrl/meta zooms; plain wheel pans via
-  // the scroll container. Reset whenever the previewed doc changes.
-  const MIN_ZOOM = 0.25;
-  const MAX_ZOOM = 3;
-  const ZOOM_STEP = 1.15;
-  let zoom = $state(1);
-  $effect(() => { void store.m.preview?.doc; zoom = 1; });
-
-  function clampZoom(z: number): number {
-    return Math.min(MAX_ZOOM, Math.max(MIN_ZOOM, z));
-  }
-  function zoomAt(delta: number) { zoom = clampZoom(zoom * delta); }
-  function zoomIn()   { zoomAt(ZOOM_STEP); }
-  function zoomOut()  { zoomAt(1 / ZOOM_STEP); }
-  function zoomReset() { zoom = 1; }
-
-  function onCanvasWheel(ev: WheelEvent) {
-    // macOS trackpad pinch arrives as wheel events with ctrlKey=true; plain
-    // two-finger scroll has ctrlKey=false and should bubble to the default
-    // scroll behaviour.
-    if (!(ev.ctrlKey || ev.metaKey)) return;
-    ev.preventDefault();
-    // deltaY < 0 means the user scrolled/pinched outward → zoom in.
-    const factor = Math.exp(-ev.deltaY * 0.01);
-    zoomAt(factor);
-  }
-
-  // Re-render the graph whenever the underlying doc, selection, or toggles
-  // change. `vizEpoch` bumps on every toggle / branch-expand. When view
-  // mode is "chat" the canvas div is not in the DOM, so this is a no-op.
-  $effect(() => {
-    const p = store.m.preview;
-    if (!canvasEl || !p || p.viewMode !== "graph") return;
-    const _epoch = p.vizEpoch;
-    renderViz(p.doc, canvasEl, {
-      selectedStepId: p.selectedStep?.step.id ?? null,
-      expandedBranches: p.expandedBranches,
-      showTs: p.showTs,
-      showFiles: p.showFiles,
-      onSelectStep: (step, actors) =>
-        store.dispatch({ t: "PreviewSelectStep", step, actors }),
-      onToggleBranch: (nodeId) =>
-        store.dispatch({ t: "PreviewToggleBranch", nodeId }),
-    });
-    // Perf: only record the first post-derive viz render. Later re-renders
-    // (zoom, toggle, branch expand) happen frequently and would clobber the
-    // trace with noise.
-    if (!perfDone) {
-      perfMark("viz-rendered");
-      perfEnd();
-      perfDone = true;
-    }
-  });
-
-  function extractSteps(): StepRef[] {
-    const d = store.m.preview?.doc;
-    if (!d) return [];
-    if ("Step" in d) return [d.Step];
-    if ("Path" in d) return d.Path.steps;
-    if ("Graph" in d) return d.Graph.paths.flatMap((p) => ("$ref" in p ? [] : p.steps));
-    return [];
-  }
-
-  const preview = $derived(store.m.preview);
-  const steps = $derived(extractSteps());
-  const actorSet = $derived(new Set(steps.map((s) => s.step.actor)));
-  const times = $derived(
-    steps.map((s) => s.step.timestamp).filter((t): t is string => !!t).sort(),
-  );
-  const docTitle = $derived(preview?.filename ?? "(untitled)");
-</script>
-
-{#if !preview}
-  <div class="empty">
-    <div class="empty__mark">△</div>
-    <div class="empty__title">Nothing to preview</div>
-    <p class="empty__body">
-      Pick a repo, pull request, or conversation from the home tab. Toolpath
-      will derive a Path document, show its provenance graph, and let you
-      upload it to <span style="color:var(--road)">pathbase.dev</span>.
-    </p>
-    <div class="empty__hint">⎇  ◇  ⊕  ●   ·   four source types</div>
-  </div>
-{:else}
-  <!-- Preview header band -->
-  <div class="preview-header">
-    <div>
-      <div class="preview-header__eyebrow">§2 · DERIVED PATH · {preview.source}</div>
-      <div class="preview-header__title">{docTitle}</div>
-      <div class="preview-header__stats">
-        △ {steps.length} step{steps.length === 1 ? "" : "s"}
-        · ◆ {actorSet.size} actor{actorSet.size === 1 ? "" : "s"}
-        {#if times.length >= 2}· {times[0].slice(0, 10)} → {times[times.length - 1].slice(0, 10)}{/if}
-      </div>
-    </div>
-    <div class="preview-header__actions">
-      <span class="tag tag--ok">◇ Valid</span>
-      <button class="btn" disabled={preview.exporting} onclick={() => store.dispatch({ t: "PreviewExport" })}>
-        {preview.exporting ? "Saving…" : "Export .json"}
-      </button>
-      <button class="btn btn--accent" disabled={preview.uploading} onclick={() => store.dispatch({ t: "PreviewUpload" })}>
-        {preview.uploading ? "Uploading…" : "Upload to pathbase.dev →"}
-      </button>
-    </div>
-  </div>
-
-  <!-- Body: tree + inspector (left) + visualizer (right) -->
-  <div class="preview-body preview-body--split">
-    <div class="preview-body__left">
-      <div class="section-label">
-        <span class="section-label__num">§2.1 ·</span>
-        <span class="section-label__text">Steps</span>
-        <span class="section-label__right">TREE</span>
-      </div>
-
-      <StepTree />
-
-      <div style="height:18px"></div>
-
-      <div class="section-label">
-        <span class="section-label__num">§2.2 ·</span>
-        <span class="section-label__text">Inspector</span>
-        <span class="section-label__right">STEP</span>
-      </div>
-
-      <div class="inspector">
-        {#if !preview.selectedStep}
-          <div class="inspector__empty">Click a step in the tree or graph to inspect its diff and metadata.</div>
-        {:else}
-          {@const s = preview.selectedStep}
-          {@const actor = s.step.actor}
-          {@const def = preview.selectedActors?.[actor]}
-          {@const displayName = def?.name ?? actor.split(":").slice(1).join(":")}
-          {@const changeKeys = s.change ? Object.keys(s.change) : []}
-          <div style="font-family:var(--font-display); font-size:18px; font-weight:600; color:var(--ink); margin-bottom:8px">
-            {s.step.id}
-          </div>
-          <div class="meta-table">
-            <div class="meta-table__k">Actor</div>
-            <div class="meta-table__v">{displayName} <span style="color:var(--ink-4)">{actor}</span></div>
-            {#if s.step.timestamp}
-              <div class="meta-table__k">Time</div>
-              <div class="meta-table__v">{s.step.timestamp}</div>
-            {/if}
-            {#if s.step.parents && s.step.parents.length}
-              <div class="meta-table__k">Parents</div>
-              <div class="meta-table__v">{s.step.parents.join(", ")}</div>
-            {/if}
-            {#if s.meta?.intent}
-              <div class="meta-table__k">Intent</div>
-              <div class="meta-table__v" style="font-family:var(--font-serif); font-size:13.5px">{s.meta.intent}</div>
-            {/if}
-          </div>
-          {#if changeKeys.length === 0}
-            <div class="inspector__empty" style="margin-top:10px">No change body on this step.</div>
-          {:else}
-            {#each changeKeys as k (k)}
-              {@const ch = s.change![k]}
-              <div class="page__eyebrow" style="margin-top:14px">{k}</div>
-              {#if ch.raw}<pre>{ch.raw}</pre>{/if}
-              {#if ch.structural}<pre>{JSON.stringify(ch.structural, null, 2)}</pre>{/if}
-            {/each}
-          {/if}
-        {/if}
-      </div>
-
-      <div style="height:18px"></div>
-      <div class="section-label">
-        <span class="section-label__num">§2.3 ·</span>
-        <span class="section-label__text">Document</span>
-        <span class="section-label__right">META</span>
-      </div>
-      <div class="meta-table">
-        <div class="meta-table__k">Source</div>
-        <div class="meta-table__v">{preview.source}</div>
-        <div class="meta-table__k">Filename</div>
-        <div class="meta-table__v">{preview.filename}</div>
-        <div class="meta-table__k">Steps</div>
-        <div class="meta-table__v">{steps.length}</div>
-        <div class="meta-table__k">Actors</div>
-        <div class="meta-table__v">{actorSet.size}</div>
-      </div>
-    </div>
-
-    <div class="preview-body__right">
-      <div class="section-label">
-        <span class="section-label__num">§2.4 ·</span>
-        <span class="section-label__text">
-          {preview.viewMode === "chat" ? "Transcript" : "Graph view"}
-        </span>
-        <span class="section-label__right">
-          {preview.viewMode === "chat" ? "CHAT" : "DAG"}
-        </span>
-      </div>
-
-      <div class="view-toggle" role="tablist" aria-label="Preview view mode">
-        <button
-          type="button"
-          role="tab"
-          aria-selected={preview.viewMode === "chat"}
-          class={"view-toggle__btn" + (preview.viewMode === "chat" ? " view-toggle__btn--active" : "")}
-          onclick={() => store.dispatch({ t: "PreviewSetViewMode", value: "chat" })}
-        >Chat view</button>
-        <button
-          type="button"
-          role="tab"
-          aria-selected={preview.viewMode === "graph"}
-          class={"view-toggle__btn" + (preview.viewMode === "graph" ? " view-toggle__btn--active" : "")}
-          onclick={() => store.dispatch({ t: "PreviewSetViewMode", value: "graph" })}
-        >Graph view</button>
-      </div>
-
-      {#if preview.viewMode === "chat"}
-        <ChatView />
-
-        <div style="margin-top:12px; font-family:var(--font-mono); font-size:10px; color:var(--ink-4); letter-spacing:0.08em; text-transform:uppercase; display:flex; gap:16px; align-items:center; border-top:0.5px solid var(--ink-5); padding-top:8px">
-          <span>HEAD path only</span>
-          <span class="spacer"></span>
-          <span>{steps.length} steps · {actorSet.size} actors</span>
-        </div>
-      {:else}
-        <div class="toolbar">
-          <label>
-            <input type="checkbox" class="checkbox" checked={preview.showTs} onchange={() => store.dispatch({ t: "PreviewToggle", key: "showTs" })} />
-            Timestamps
-          </label>
-          <label>
-            <input type="checkbox" class="checkbox" checked={preview.showFiles} onchange={() => store.dispatch({ t: "PreviewToggle", key: "showFiles" })} />
-            Files touched
-          </label>
-          <span class="spacer"></span>
-          <div class="zoom-ctl" role="group" aria-label="Graph zoom">
-            <button type="button" class="zoom-ctl__btn" onclick={zoomOut} disabled={zoom <= MIN_ZOOM + 0.001} aria-label="Zoom out">−</button>
-            <button type="button" class="zoom-ctl__pct" onclick={zoomReset} title="Reset to 100%">{Math.round(zoom * 100)}%</button>
-            <button type="button" class="zoom-ctl__btn" onclick={zoomIn} disabled={zoom >= MAX_ZOOM - 0.001} aria-label="Zoom in">+</button>
-          </div>
-          <span class="kbd">⌘/ctrl + scroll to zoom</span>
-        </div>
-
-        <div
-          class="graph-scroll"
-          onwheel={onCanvasWheel}
-        >
-          <!-- `zoom` (non-standard but supported in WebKit/Chromium → all
-               Tauri runtimes) actually scales layout size, so the outer
-               scroll container sees correct content bounds. We fall back to
-               `transform: scale` with inverse-compensated width/height in
-               the stylesheet for engines that don't implement `zoom`
-               (e.g. Firefox), via an `@supports not (zoom: 2)` block. -->
-          <div class="graph-zoom" style="--pg-zoom: {zoom}" bind:this={canvasEl}></div>
-        </div>
-
-        <div style="margin-top:12px; font-family:var(--font-mono); font-size:10px; color:var(--ink-4); letter-spacing:0.08em; text-transform:uppercase; display:flex; gap:16px; align-items:center; border-top:0.5px solid var(--ink-5); padding-top:8px">
-          <span style="display:inline-flex; align-items:center; gap:5px">
-            <span style="width:8px; height:8px; background:var(--road); transform:rotate(45deg); display:inline-block"></span>
-            human
-          </span>
-          <span style="display:inline-flex; align-items:center; gap:5px">
-            <span style="width:8px; height:8px; background:var(--water); border-radius:999px; display:inline-block"></span>
-            agent
-          </span>
-          <span style="display:inline-flex; align-items:center; gap:5px">
-            <span style="width:8px; height:8px; background:var(--paper-white); border:1px dashed var(--road); display:inline-block"></span>
-            dead-end
-          </span>
-          <span class="spacer"></span>
-          <span>{steps.length} steps · {actorSet.size} actors</span>
-        </div>
-      {/if}
-    </div>
-  </div>
-{/if}
diff --git a/crates/toolpath-desktop/frontend/src/routes/Result.svelte b/crates/toolpath-desktop/frontend/src/routes/Result.svelte
deleted file mode 100644
index 948b3bc..0000000
--- a/crates/toolpath-desktop/frontend/src/routes/Result.svelte
+++ /dev/null
@@ -1,79 +0,0 @@
-<script lang="ts">
-  import { store } from "../lib/store.svelte";
-
-  const r = $derived(store.m.result);
-
-  async function openUrl(url: string) {
-    const { openUrl } = await import("@tauri-apps/plugin-opener");
-    await openUrl(url);
-  }
-  async function revealInDir(path: string) {
-    const { revealItemInDir } = await import("@tauri-apps/plugin-opener");
-    await revealItemInDir(path);
-  }
-</script>
-
-<div class="page">
-  {#if !r}
-    <div class="empty">
-      <div class="empty__mark">△</div>
-      <div class="empty__title">No result yet</div>
-      <p class="empty__body">Derive and upload a Path document to see the outcome here.</p>
-    </div>
-  {:else if r.kind === "export"}
-    <div class="page__header">
-      <div>
-        <div class="page__eyebrow">§3 · EXPORT · COMPLETE</div>
-        <h1 class="page__title">Saved to disk</h1>
-        <p class="page__lede">Your trace was written as a <code>.path.json</code> document.</p>
-      </div>
-      <span class="tag tag--ok">✓ Saved</span>
-    </div>
-
-    <div class="card-panel">
-      <div class="meta-table">
-        <div class="meta-table__k">Source</div>
-        <div class="meta-table__v">{r.source}</div>
-        <div class="meta-table__k">Path</div>
-        <div class="meta-table__v">{r.path}</div>
-      </div>
-    </div>
-
-    <div class="row" style="margin-top:18px">
-      <span class="spacer"></span>
-      <button class="btn" onclick={() => revealInDir(r.path)}>Reveal in file manager</button>
-      <button class="btn btn--primary" onclick={() => store.dispatch({ t: "NavigateTo", screen: "home" })}>Back to home</button>
-    </div>
-  {:else}
-    <div class="page__header">
-      <div>
-        <div class="page__eyebrow">§3 · UPLOAD · QUEUED</div>
-        <h1 class="page__title">Upload queued</h1>
-        <p class="page__lede">Document validated and sent to pathbase.dev.</p>
-      </div>
-      <span class="tag tag--accent">↗ Queued</span>
-    </div>
-
-    {#if r.stub}
-      <div class="notice" style="margin-bottom:14px">
-        Pathbase is not live yet — this is a stubbed response. The document
-        validated cleanly; the real upload will drop in when the API ships.
-      </div>
-    {/if}
-
-    <div class="card-panel">
-      <div class="meta-table">
-        <div class="meta-table__k">Source</div>
-        <div class="meta-table__v">{r.source}</div>
-        <div class="meta-table__k">URL</div>
-        <div class="meta-table__v">{r.url}</div>
-      </div>
-    </div>
-
-    <div class="row" style="margin-top:18px">
-      <span class="spacer"></span>
-      <button class="btn" onclick={() => openUrl(r.url)}>Open URL</button>
-      <button class="btn btn--primary" onclick={() => store.dispatch({ t: "NavigateTo", screen: "home" })}>Back to home</button>
-    </div>
-  {/if}
-</div>
diff --git a/crates/toolpath-desktop/frontend/src/styles.css b/crates/toolpath-desktop/frontend/src/styles.css
deleted file mode 100644
index 785b53c..0000000
--- a/crates/toolpath-desktop/frontend/src/styles.css
+++ /dev/null
@@ -1,1903 +0,0 @@
-/* ==========================================================================
-   Toolpath Desktop — cartographic "paper chart" design language.
-   Mirrors the Pathbase brand: topographic map palette, hairline rules,
-   serif body, monospace metadata.
-   ========================================================================== */
-
-@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,300..900;1,8..60,300..900&family=JetBrains+Mono:wght@300..700&family=IBM+Plex+Sans+Condensed:wght@300;400;500;600;700&display=swap');
-
-:root {
-  /* Paper stock — cream chart paper */
-  --paper:           #ece6d6;
-  --paper-2:         #e2dbc8;
-  --paper-3:         #d6ceb8;
-  --paper-bright:    #f2ede0;
-  --paper-white:     #f6f2e6;
-
-  /* Ink — desaturated warm-black */
-  --ink:             #221f18;
-  --ink-2:           #3d3830;
-  --ink-3:           #6e6857;
-  --ink-4:           #9a9483;
-  --ink-5:           #beb8a5;
-
-  /* Contour brown — the defining cartographic ink */
-  --contour:         #8c6a3a;
-  --contour-2:       #6d4f26;
-  --contour-faint:   #b59a6e;
-
-  /* Map palette */
-  --water:           #6e8faa;
-  --water-wash:      #cfd9e0;
-  --forest:          #8a9a6e;
-  --forest-wash:     #d7dcbf;
-  --road:            #a85038;
-  --road-2:          #8a3e2a;
-  --road-wash:       #ecd5cb;
-  --boundary:        #8a3a6a;
-
-  --accent:          var(--road);
-  --accent-2:        var(--road-2);
-  --accent-wash:     var(--road-wash);
-  --ok:              var(--forest);
-  --warn:            var(--contour);
-  --err:             var(--road);
-
-  /* Role-specific surface tokens (used by .pg-card states) */
-  --pg-card-dead-bg:   #fcfaf6;
-  --pg-card-toggle-bg: #faf6ee;
-
-  --font-serif:      "Source Serif 4", "Source Serif Pro", "Times New Roman", Times, Georgia, serif;
-  --font-display:    "Source Serif 4", Georgia, serif;
-  --font-mono:       "JetBrains Mono", "IBM Plex Mono", ui-monospace, Menlo, monospace;
-  --font-sans:       "IBM Plex Sans Condensed", "IBM Plex Sans", -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;
-
-  --ease:            cubic-bezier(0.2, 0, 0.2, 1);
-
-  /* Legacy aliases used by viz.ts (.path-graph, .pg-card) */
-  --text:            var(--ink);
-  --text-muted:      var(--ink-3);
-  --panel:           var(--paper-bright);
-  --border:          var(--ink-5);
-  --accent-soft:     var(--accent-wash);
-  --accent-hot:      var(--accent-wash);
-  --danger:          var(--road);
-  --dead:            var(--road-wash);
-  --mono:            var(--font-mono);
-  --sans:            var(--font-sans);
-}
-
-/* ==========================================================================
-   DARK MODE — "Soft graphite" night survey paper.
-   A first-class companion to light mode. Toggle via <html data-theme="dark">.
-   Moss-smudged paper, warm cream ink, muted territory hues.
-   ========================================================================== */
-:root[data-theme="dark"] {
-  --paper:           #2e3230;
-  --paper-2:         #353a37;
-  --paper-3:         #3d423e;
-  --paper-bright:    #373c39;
-  --paper-white:     #424742;
-
-  --ink:             #e8e5d6;
-  --ink-2:           #ccc9ba;
-  --ink-3:           #97968a;
-  --ink-4:           #6a6c62;
-  --ink-5:           #4c4f4a;
-
-  --contour:         #c8a76e;
-  --contour-2:       #d9b67c;
-  --contour-faint:   #7f6c4c;
-
-  --water:           #9ab3c4;
-  --water-wash:      #3e4c54;
-  --forest:          #b6c68e;
-  --forest-wash:     #3f4a36;
-  --road:            #d38c74;
-  --road-2:          #de9d86;
-  --road-wash:       #4a342c;
-  --boundary:        #bf8fab;
-
-  --pg-card-dead-bg:   var(--paper-2);
-  --pg-card-toggle-bg: var(--paper-2);
-
-  color-scheme: dark;
-}
-
-/* No lighter "frame" around the window in dark mode — let the paper run
-   edge-to-edge. Also sit the active tab a shade below the page so it
-   reads as pressed-in, not raised. */
-:root[data-theme="dark"] html,
-:root[data-theme="dark"] body { background: var(--paper); }
-:root[data-theme="dark"] .window { border-color: transparent; }
-:root[data-theme="dark"] .tabs__item--active { background: #24272a; }
-
-* { box-sizing: border-box; }
-html, body {
-  height: 100%;
-  margin: 0;
-  background: var(--paper-3);
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-  font-family: var(--font-serif);
-  font-size: 14px;
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-
-*::-webkit-scrollbar { width: 10px; height: 10px; }
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-*::-webkit-scrollbar-thumb:hover { background: var(--ink-4); }
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-/* ---------- Window chrome ---------- */
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-  display: grid;
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-  border: 0.5px solid var(--ink);
-  position: relative;
-}
-
-.window__title {
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-}
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-.window__title-center .sep { opacity: 0.4; }
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-  display: flex; align-items: center; gap: 10px;
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-.window__title-right .elevation { color: var(--contour-2); }
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-/* ---------- Tab bar ---------- */
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-.tabs__item:hover { color: var(--ink-2); }
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-.tabs__num {
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-/* ---------- Theme toggle (sits at the end of the tabs bar) ---------- */
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-}
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-/* ---------- Main scroll area ---------- */
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-/* ---------- Source-type tabs (top of source picker) ---------- */
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-/* ---------- Paper-bright card panel ---------- */
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-/* ---------- Meta table ---------- */
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-/* ---------- Notice ---------- */
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-/* ---------- Helpers ---------- */
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-/* Preview canvas */
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-.preview-body {
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-/* Toolbar (visualizer toggles) */
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-/* Contour-texture backdrop */
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-::selection { background: var(--accent-wash); color: var(--ink); }
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-code { font-family: var(--font-mono); font-size: 0.92em; }
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-/* Live-pulse animation (upload / tracking indicators) */
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-/* ─── Path graph (viz.ts) ──────────────────────────────────────────── */
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-/* Card — chat-shaped: speaker label on top, message text as body. */
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-.pg-card__head {
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-/* Message body — compact markdown preview, fades out at the bottom so
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-/* "Used Read · Edit · Bash" summary chips under an assistant card. */
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-.pg-card__actor {
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-.pg-card__footer {
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-.pg-card__toggle--on {
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-/* ─── Step tree sidebar (StepTree.svelte) ──────────────────────────── */
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-}
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-  font-size: 12px;
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-}
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-  color: var(--ink-4);
-  display: flex;
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-}
-
-/* ─── View-mode toggle (Chat / Graph) ─────────────────────────────── */
-.view-toggle {
-  display: inline-flex;
-  margin: 0 0 12px;
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-}
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-  background: var(--paper-white);
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-}
-
-/* ─── Chat transcript (ChatView.svelte) ───────────────────────────────
-   Modelled on Claude's native desktop chat.
-   — User messages: right-aligned soft card, warm paper tint, no border.
-   — Assistant messages: left-aligned prose, no bubble, model label above.
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-   ───────────────────────────────────────────────────────────────────── */
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-}
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-/* User: right-aligned bubble */
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-}
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-}
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-/* Assistant: left-aligned soft water-wash card. */
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-  max-width: 88%;
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-}
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-}
-.chat-msg--assistant .chat-msg__name { font-weight: 600; }
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-.chat-msg--assistant .chat-msg__text { max-width: 80ch; }
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-  border-color: var(--water);
-  box-shadow: 0 0 0 1px var(--water) inset;
-  background: var(--paper-white);
-}
-/* Inside a water-wash bubble, lift code/pre contrast so they read. */
-.chat-msg--assistant .markdown code,
-.chat-msg--assistant .markdown pre {
-  background: var(--paper-white);
-  border-color: var(--ink-5);
-}
-
-/* "Used X, Y, Z" summary under an assistant turn. */
-.chat-tools {
-  display: flex;
-  flex-wrap: wrap;
-  gap: 4px 6px;
-  align-items: baseline;
-  margin-top: 10px;
-  font-family: var(--font-mono);
-  font-size: 10px;
-  letter-spacing: 0.08em;
-  color: var(--ink-3);
-}
-.chat-tools__label {
-  text-transform: uppercase;
-  letter-spacing: 0.14em;
-  color: var(--ink-4);
-}
-.chat-tools__chip {
-  padding: 1px 7px;
-  border: 0.5px solid var(--ink-5);
-  border-radius: 10px;
-  background: var(--paper-2);
-  color: var(--ink-2);
-  font-weight: 500;
-}
-
-/* Thinking block (assistant pre-thought). */
-.chat-thinking {
-  margin: 2px 0 10px;
-  border: 0.5px dashed var(--ink-5);
-  background: var(--paper-2);
-  border-radius: 6px;
-  padding: 0 10px;
-}
-.chat-thinking > summary {
-  cursor: pointer;
-  font-family: var(--font-mono);
-  font-size: 10.5px;
-  letter-spacing: 0.14em;
-  text-transform: uppercase;
-  color: var(--ink-3);
-  padding: 6px 0;
-  list-style: none;
-}
-.chat-thinking > summary::-webkit-details-marker { display: none; }
-.chat-thinking[open] > summary { color: var(--contour-2); }
-.chat-thinking__body {
-  font-family: var(--font-serif);
-  font-size: 13px;
-  color: var(--ink-3);
-  white-space: pre-wrap;
-  padding: 4px 0 10px;
-  font-style: italic;
-  border-top: 0.5px solid var(--ink-5);
-}
-
-/* Tool invocation card (collapsed by default). */
-.chat-tool {
-  border: 0.5px solid var(--ink-5);
-  border-radius: 6px;
-  background: var(--paper-bright);
-  overflow: hidden;
-  max-width: 80ch;
-}
-.chat-tool--active {
-  border-color: var(--contour-2);
-  box-shadow: 0 0 0 1px var(--contour-faint);
-}
-.chat-tool--has-diff {
-  border-left: 3px solid var(--forest);
-}
-
-/* Inline tool list inside an assistant bubble. Indented so it visually
-   belongs to the parent message; cards inside get a paper-white bg to
-   contrast against the water-wash bubble. */
-.chat-tool-list {
-  margin: 10px 0 0;
-  display: flex;
-  flex-direction: column;
-  gap: 6px;
-}
-.chat-tool-list .chat-tool {
-  background: var(--paper-white);
-  max-width: 100%;
-}
-.chat-tool__head {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  width: 100%;
-  padding: 8px 12px;
-  background: transparent;
-  border: 0;
-  cursor: pointer;
-  font-family: var(--font-mono);
-  font-size: 11px;
-  color: var(--ink-2);
-  letter-spacing: 0.06em;
-  text-align: left;
-}
-.chat-tool__head:hover { background: var(--paper-2); }
-.chat-tool__caret {
-  color: var(--ink-4);
-  font-size: 10px;
-  width: 10px;
-}
-.chat-tool__name {
-  color: var(--contour-2);
-  font-weight: 600;
-  letter-spacing: 0.04em;
-}
-.chat-tool__sep { color: var(--ink-5); }
-.chat-tool__actor { color: var(--ink-3); }
-.chat-tool__ts { color: var(--ink-4); font-size: 10px; letter-spacing: 0.08em; }
-.chat-tool__body {
-  border-top: 0.5px solid var(--ink-5);
-  padding: 10px 12px 12px;
-  display: flex;
-  flex-direction: column;
-  gap: 6px;
-}
-.chat-tool__section-label {
-  font-family: var(--font-mono);
-  font-size: 9.5px;
-  letter-spacing: 0.14em;
-  text-transform: uppercase;
-  color: var(--ink-4);
-  margin-top: 4px;
-}
-.chat-tool__diff {
-  font-family: var(--font-mono);
-  font-size: 11px;
-  background: var(--paper-2);
-  border: 0.5px solid var(--ink-5);
-  border-radius: 4px;
-  padding: 8px 10px;
-  margin: 0;
-  overflow: auto;
-  max-height: 320px;
-  line-height: 1.45;
-  color: var(--ink-2);
-  white-space: pre;
-}
-.chat-tool__diff code { font: inherit; color: inherit; background: transparent; }
-.diff-line { display: block; }
-.diff-line--add  { color: var(--forest);   background: var(--forest-wash); }
-.diff-line--del  { color: var(--road-2);   background: var(--road-wash);   }
-.diff-line--hunk { color: var(--water);    background: transparent; font-weight: 600; }
-.diff-line--meta { color: var(--ink-4);    background: transparent; }
-
-.chat-tool__path {
-  color: var(--ink-3);
-  font-weight: 500;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  max-width: 240px;
-  white-space: nowrap;
-}
-
-.chat-tool__pre {
-  font-family: var(--font-mono);
-  font-size: 11px;
-  background: var(--paper-2);
-  border: 0.5px solid var(--ink-5);
-  border-radius: 4px;
-  padding: 8px 10px;
-  margin: 0;
-  overflow: auto;
-  max-height: 220px;
-  white-space: pre-wrap;
-  word-break: break-word;
-  color: var(--ink-2);
-}
-.chat-tool__empty {
-  color: var(--ink-4);
-  font-size: 11px;
-  font-style: italic;
-}
-.chat-tool__inspect {
-  background: transparent;
-  border: 0.5px solid var(--ink-5);
-  color: var(--ink-3);
-  padding: 3px 10px;
-  font-family: var(--font-mono);
-  font-size: 10px;
-  letter-spacing: 0.1em;
-  text-transform: uppercase;
-  border-radius: 3px;
-  cursor: pointer;
-}
-.chat-tool__inspect:hover {
-  color: var(--contour-2);
-  border-color: var(--contour-2);
-  background: var(--paper-2);
-}
-
-/* ─── Markdown prose (chat bodies) ───────────────────────────────── */
-.markdown {
-  /* Override ChatView's pre-wrap so block elements flow naturally. */
-  white-space: normal;
-}
-.markdown > :first-child { margin-top: 0; }
-.markdown > :last-child { margin-bottom: 0; }
-.markdown p {
-  margin: 0 0 10px;
-  line-height: 1.6;
-}
-.markdown p:last-child { margin-bottom: 0; }
-.markdown h1,
-.markdown h2,
-.markdown h3,
-.markdown h4,
-.markdown h5,
-.markdown h6 {
-  font-family: var(--font-display);
-  font-weight: 700;
-  letter-spacing: -0.005em;
-  color: var(--ink);
-  margin: 16px 0 8px;
-  line-height: 1.25;
-}
-.markdown h1 { font-size: 22px; }
-.markdown h2 { font-size: 18px; }
-.markdown h3 { font-size: 16px; }
-.markdown h4 { font-size: 14.5px; font-weight: 600; }
-.markdown h5,
-.markdown h6 { font-size: 13px; font-weight: 600; color: var(--ink-2); }
-.markdown strong { font-weight: 700; color: var(--ink); }
-.markdown em { font-style: italic; }
-.markdown a {
-  color: var(--road);
-  text-decoration: underline;
-  text-decoration-color: var(--road-wash);
-  text-underline-offset: 2px;
-}
-.markdown a:hover {
-  text-decoration-color: var(--road);
-}
-.markdown ul,
-.markdown ol {
-  margin: 6px 0 10px;
-  padding-left: 24px;
-}
-.markdown li { margin: 2px 0; line-height: 1.55; }
-.markdown li > p { margin-bottom: 4px; }
-.markdown ul > li { list-style-type: disc; }
-.markdown ol > li { list-style-type: decimal; }
-.markdown ul ul > li { list-style-type: circle; }
-.markdown blockquote {
-  margin: 8px 0;
-  padding: 4px 12px;
-  border-left: 3px solid var(--contour-faint);
-  background: var(--paper-2);
-  color: var(--ink-2);
-  font-style: italic;
-}
-.markdown hr {
-  border: 0;
-  border-top: 0.5px solid var(--ink-5);
-  margin: 14px 0;
-}
-.markdown code {
-  font-family: var(--font-mono);
-  font-size: 0.88em;
-  background: var(--paper-2);
-  border: 0.5px solid var(--ink-5);
-  padding: 0.5px 5px;
-  border-radius: 3px;
-  color: var(--ink-2);
-  white-space: break-spaces;
-}
-.markdown pre {
-  font-family: var(--font-mono);
-  font-size: 12px;
-  background: var(--paper-2);
-  border: 0.5px solid var(--ink-5);
-  border-radius: 6px;
-  padding: 10px 12px;
-  margin: 8px 0;
-  overflow: auto;
-  max-height: 380px;
-  line-height: 1.5;
-  color: var(--ink);
-}
-.markdown pre > code {
-  background: transparent;
-  border: 0;
-  padding: 0;
-  border-radius: 0;
-  color: inherit;
-  font-size: inherit;
-  white-space: pre;
-}
-.markdown table {
-  border-collapse: collapse;
-  margin: 8px 0;
-  font-size: 12.5px;
-  width: auto;
-  max-width: 100%;
-  overflow: auto;
-  display: block;
-}
-.markdown th,
-.markdown td {
-  border: 0.5px solid var(--ink-5);
-  padding: 4px 10px;
-  text-align: left;
-}
-.markdown th {
-  background: var(--paper-2);
-  font-weight: 600;
-  font-family: var(--font-sans);
-  letter-spacing: 0.04em;
-}
-.markdown img {
-  max-width: 100%;
-  border-radius: 4px;
-  border: 0.5px solid var(--ink-5);
-}
-
-/* Tune user bubble so pre/code have contrast inside the warm tint. */
-.chat-msg--user .markdown code,
-.chat-msg--user .markdown pre {
-  background: var(--paper-white);
-  border-color: var(--ink-5);
-}
-
-/* Compact markdown — used inside graph-view cards where real estate is
-   tight and headings/code-blocks need to stay on scale with body text. */
-.markdown--compact { font-size: 12.5px; line-height: 1.45; }
-.markdown--compact p { margin: 0 0 6px; }
-.markdown--compact h1,
-.markdown--compact h2,
-.markdown--compact h3,
-.markdown--compact h4,
-.markdown--compact h5,
-.markdown--compact h6 {
-  margin: 6px 0 3px;
-  font-size: 13px;
-  font-weight: 600;
-  font-family: var(--font-display);
-}
-.markdown--compact h1 { font-size: 14px; }
-.markdown--compact ul,
-.markdown--compact ol { margin: 2px 0 6px; padding-left: 18px; }
-.markdown--compact li { margin: 0; line-height: 1.4; }
-.markdown--compact blockquote {
-  margin: 4px 0; padding: 2px 8px; font-size: 12px;
-}
-.markdown--compact hr { margin: 6px 0; }
-.markdown--compact code {
-  font-size: 0.85em;
-  padding: 0 4px;
-}
-.markdown--compact pre {
-  font-size: 10.5px;
-  padding: 6px 8px;
-  margin: 4px 0;
-  max-height: 90px;
-  line-height: 1.35;
-  border-radius: 4px;
-}
-.markdown--compact table { font-size: 11px; }
-.markdown--compact th,
-.markdown--compact td { padding: 2px 6px; }
-
-/* Centered hairline divider for system/init/event rows. */
-.chat-divider {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  cursor: pointer;
-  padding: 2px 0;
-  outline: none;
-}
-.chat-divider:focus-visible .chat-divider__label {
-  color: var(--contour-2);
-}
-.chat-divider__line {
-  flex: 1;
-  height: 0;
-  border-top: 0.5px solid var(--ink-5);
-}
-.chat-divider__label {
-  font-family: var(--font-mono);
-  font-size: 9.5px;
-  letter-spacing: 0.16em;
-  text-transform: uppercase;
-  color: var(--ink-4);
-  white-space: nowrap;
-}
diff --git a/crates/toolpath-desktop/frontend/svelte.config.js b/crates/toolpath-desktop/frontend/svelte.config.js
deleted file mode 100644
index 8bda965..0000000
--- a/crates/toolpath-desktop/frontend/svelte.config.js
+++ /dev/null
@@ -1,8 +0,0 @@
-import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";
-
-export default {
-  preprocess: vitePreprocess(),
-  compilerOptions: {
-    runes: true,
-  },
-};
diff --git a/crates/toolpath-desktop/frontend/tsconfig.json b/crates/toolpath-desktop/frontend/tsconfig.json
deleted file mode 100644
index d409648..0000000
--- a/crates/toolpath-desktop/frontend/tsconfig.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extends": "@tsconfig/svelte/tsconfig.json",
-  "compilerOptions": {
-    "target": "ES2022",
-    "module": "ESNext",
-    "moduleResolution": "bundler",
-    "resolveJsonModule": true,
-    "allowSyntheticDefaultImports": true,
-    "strict": true,
-    "noImplicitAny": true,
-    "noUnusedLocals": false,
-    "skipLibCheck": true,
-    "isolatedModules": true,
-    "verbatimModuleSyntax": true,
-    "lib": ["ES2022", "DOM", "DOM.Iterable"],
-    "types": ["svelte", "vite/client"]
-  },
-  "include": ["src/**/*.ts", "src/**/*.svelte"],
-  "exclude": ["src/lib/__bench__/**"]
-}
diff --git a/crates/toolpath-desktop/frontend/vite.config.ts b/crates/toolpath-desktop/frontend/vite.config.ts
deleted file mode 100644
index 47b98b4..0000000
--- a/crates/toolpath-desktop/frontend/vite.config.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { defineConfig } from "vite";
-import { svelte } from "@sveltejs/vite-plugin-svelte";
-import { resolve } from "node:path";
-
-// Tauri expects a fixed port; strictPort = fail if taken rather than pick
-// another one behind its back.
-const HOST = "127.0.0.1";
-const PORT = 1420;
-
-export default defineConfig({
-  plugins: [svelte()],
-  clearScreen: false,
-  server: {
-    host: HOST,
-    port: PORT,
-    strictPort: true,
-    hmr: { protocol: "ws", host: HOST, port: PORT + 1 },
-    watch: {
-      // Don't let Vite re-scan the Rust side.
-      ignored: ["**/src-tauri/**", "**/target/**"],
-    },
-  },
-  build: {
-    target: "es2022",
-    // Tauri bundles the assets; a single-chunk build keeps the devtools
-    // panel readable and avoids weird code-splitting behaviour in the
-    // webview.
-    chunkSizeWarningLimit: 1500,
-    rollupOptions: {
-      // Two HTML entries: the main window (index.html) and the tray popover
-      // (popover.html). Both are bundled into frontend/dist by Tauri.
-      input: {
-        main: resolve(__dirname, "index.html"),
-        popover: resolve(__dirname, "popover.html"),
-      },
-    },
-  },
-});
diff --git a/crates/toolpath-desktop/frontend/vitest.config.ts b/crates/toolpath-desktop/frontend/vitest.config.ts
deleted file mode 100644
index 23913e6..0000000
--- a/crates/toolpath-desktop/frontend/vitest.config.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-import { defineConfig } from "vitest/config";
-
-// Pure-TS unit tests for the lib modules. No Svelte component tests, no
-// DOM — the two modules we test (`classify.ts`, `tree.ts`) operate on
-// plain data shapes, so the Node environment is sufficient.
-export default defineConfig({
-  test: {
-    environment: "node",
-    include: ["src/**/*.test.ts"],
-  },
-});
diff --git a/crates/toolpath-desktop/icons/icon.png b/crates/toolpath-desktop/icons/icon.png
deleted file mode 100644
index 5fad9d9..0000000
Binary files a/crates/toolpath-desktop/icons/icon.png and /dev/null differ
diff --git a/crates/toolpath-desktop/package.json b/crates/toolpath-desktop/package.json
deleted file mode 100644
index df8568a..0000000
--- a/crates/toolpath-desktop/package.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "dependencies": {
-    "vite": "^8.0.9"
-  }
-}
\ No newline at end of file
diff --git a/crates/toolpath-desktop/src/commands/derive.rs b/crates/toolpath-desktop/src/commands/derive.rs
deleted file mode 100644
index c58793a..0000000
--- a/crates/toolpath-desktop/src/commands/derive.rs
+++ /dev/null
@@ -1,199 +0,0 @@
-use serde_json::Value;
-
-use crate::commands::keychain;
-use crate::error::{DesktopError, DesktopResult};
-
-/// Serialise a `Document` through its JSON form so the frontend receives it as
-/// a plain value without us manually reimplementing every type.
-fn document_to_value(doc: &toolpath::v1::Document) -> DesktopResult<Value> {
-    let json = doc
-        .to_json()
-        .map_err(|e| DesktopError::Derive(format!("serialize document: {e}")))?;
-    Ok(serde_json::from_str(&json)?)
-}
-
-#[tauri::command]
-pub fn derive_claude(
-    project_path: String,
-    session_ids: Vec<String>,
-    include_thinking: bool,
-) -> DesktopResult<Value> {
-    if session_ids.is_empty() {
-        return Err(DesktopError::InvalidInput(
-            "at least one session ID is required".into(),
-        ));
-    }
-
-    let manager = toolpath_claude::ClaudeConvo::new();
-    let config = toolpath_claude::derive::DeriveConfig {
-        project_path: Some(project_path.clone()),
-        include_thinking,
-    };
-
-    let mut paths = Vec::with_capacity(session_ids.len());
-    for session_id in &session_ids {
-        let convo = manager
-            .read_conversation(&project_path, session_id)
-            .map_err(|e| DesktopError::Derive(format!("read {session_id}: {e}")))?;
-        paths.push(toolpath_claude::derive::derive_path(&convo, &config));
-    }
-
-    let document = if paths.len() == 1 {
-        toolpath::v1::Document::Path(paths.pop().unwrap())
-    } else {
-        // Multiple sessions selected -> produce a Graph wrapping each Path.
-        let graph = toolpath::v1::Graph {
-            graph: toolpath::v1::GraphIdentity {
-                id: format!("graph-claude-{}", uuid_suffix()),
-            },
-            paths: paths
-                .into_iter()
-                .map(|p| toolpath::v1::PathOrRef::Path(Box::new(p)))
-                .collect(),
-            meta: Some(toolpath::v1::GraphMeta {
-                title: Some(format!("Claude sessions from {project_path}")),
-                ..Default::default()
-            }),
-        };
-        toolpath::v1::Document::Graph(graph)
-    };
-
-    document_to_value(&document)
-}
-
-#[tauri::command]
-pub fn derive_pi(
-    project_path: String,
-    session_ids: Vec<String>,
-    include_thinking: bool,
-) -> DesktopResult<Value> {
-    if session_ids.is_empty() {
-        return Err(DesktopError::InvalidInput(
-            "at least one session ID is required".into(),
-        ));
-    }
-
-    let manager = toolpath_pi::PiConvo::new();
-    let config = toolpath_pi::DeriveConfig {
-        include_thinking,
-        ..Default::default()
-    };
-
-    let mut paths = Vec::with_capacity(session_ids.len());
-    for session_id in &session_ids {
-        let session = manager
-            .read_session(&project_path, session_id)
-            .map_err(|e| DesktopError::Derive(format!("read {session_id}: {e}")))?;
-        paths.push(toolpath_pi::derive_path(&session, &config));
-    }
-
-    let document = if paths.len() == 1 {
-        toolpath::v1::Document::Path(paths.pop().unwrap())
-    } else {
-        let graph = toolpath::v1::Graph {
-            graph: toolpath::v1::GraphIdentity {
-                id: format!("graph-pi-{}", uuid_suffix()),
-            },
-            paths: paths
-                .into_iter()
-                .map(|p| toolpath::v1::PathOrRef::Path(Box::new(p)))
-                .collect(),
-            meta: Some(toolpath::v1::GraphMeta {
-                title: Some(format!("pi.dev sessions from {project_path}")),
-                ..Default::default()
-            }),
-        };
-        toolpath::v1::Document::Graph(graph)
-    };
-
-    document_to_value(&document)
-}
-
-#[tauri::command]
-pub fn derive_git(repo_path: String, branch: String, base: Option<String>) -> DesktopResult<Value> {
-    if branch.is_empty() {
-        return Err(DesktopError::InvalidInput("branch is required".into()));
-    }
-    let repo = git2::Repository::open(&repo_path)
-        .map_err(|e| DesktopError::Derive(format!("open repo {repo_path}: {e}")))?;
-
-    let config = toolpath_git::DeriveConfig {
-        remote: "origin".to_string(),
-        title: None,
-        base,
-    };
-
-    let document = toolpath_git::derive(&repo, std::slice::from_ref(&branch), &config)
-        .map_err(|e| DesktopError::Derive(format!("derive git: {e:#}")))?;
-
-    document_to_value(&document)
-}
-
-#[tauri::command]
-pub fn derive_github(
-    pr_url: String,
-    include_ci: bool,
-    include_comments: bool,
-) -> DesktopResult<Value> {
-    let parsed = toolpath_github::parse_pr_url(&pr_url).ok_or_else(|| {
-        DesktopError::InvalidInput(
-            "invalid PR URL; expected https://github.com/owner/repo/pull/N".into(),
-        )
-    })?;
-
-    let token = keychain::read_github_token()
-        .map_err(|e| DesktopError::Auth(format!("no GitHub token configured: {e}")))?;
-
-    let config = toolpath_github::DeriveConfig {
-        token,
-        include_ci,
-        include_comments,
-        ..Default::default()
-    };
-
-    let path =
-        toolpath_github::derive_pull_request(&parsed.owner, &parsed.repo, parsed.number, &config)
-            .map_err(|e| DesktopError::Derive(format!("derive github: {e:#}")))?;
-
-    document_to_value(&toolpath::v1::Document::Path(path))
-}
-
-fn uuid_suffix() -> String {
-    uuid::Uuid::new_v4().to_string().chars().take(8).collect()
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use tempfile::tempdir;
-
-    #[test]
-    fn derive_claude_rejects_empty_selection() {
-        let err = derive_claude("/nowhere".into(), vec![], false).unwrap_err();
-        assert!(matches!(err, DesktopError::InvalidInput(_)));
-    }
-
-    #[test]
-    fn derive_git_rejects_missing_branch() {
-        let err = derive_git("/tmp".into(), String::new(), None).unwrap_err();
-        assert!(matches!(err, DesktopError::InvalidInput(_)));
-    }
-
-    #[test]
-    fn derive_git_rejects_bad_repo() {
-        let dir = tempdir().unwrap();
-        let err = derive_git(
-            dir.path().to_string_lossy().into_owned(),
-            "main".into(),
-            None,
-        )
-        .unwrap_err();
-        assert!(matches!(err, DesktopError::Derive(_)));
-    }
-
-    #[test]
-    fn derive_github_rejects_bad_url() {
-        let err = derive_github("not a url".into(), true, true).unwrap_err();
-        assert!(matches!(err, DesktopError::InvalidInput(_)));
-    }
-}
diff --git a/crates/toolpath-desktop/src/commands/export.rs b/crates/toolpath-desktop/src/commands/export.rs
deleted file mode 100644
index 01ecf17..0000000
--- a/crates/toolpath-desktop/src/commands/export.rs
+++ /dev/null
@@ -1,98 +0,0 @@
-use serde_json::Value;
-use std::path::PathBuf;
-
-use crate::error::{DesktopError, DesktopResult};
-
-/// Write a Toolpath document to disk as pretty-printed JSON.
-///
-/// The frontend is responsible for prompting the user with a save dialog
-/// (via `@tauri-apps/plugin-dialog`) and passing us the chosen absolute path
-/// plus the derived document as a JSON value. We parse it back through the
-/// `Document` type so bad payloads are rejected before touching the
-/// filesystem.
-#[tauri::command]
-pub fn save_document(document: Value, out_path: String) -> DesktopResult<String> {
-    if out_path.is_empty() {
-        return Err(DesktopError::InvalidInput("out_path is empty".into()));
-    }
-
-    // Round-trip through Document to enforce schema-shape at the boundary.
-    let json = serde_json::to_string(&document)?;
-    let doc = toolpath::v1::Document::from_json(&json)
-        .map_err(|e| DesktopError::InvalidInput(format!("invalid document: {e}")))?;
-    let pretty = doc
-        .to_json_pretty()
-        .map_err(|e| DesktopError::Io(format!("serialize: {e}")))?;
-
-    let path = PathBuf::from(&out_path);
-    if let Some(parent) = path.parent()
-        && !parent.as_os_str().is_empty()
-    {
-        std::fs::create_dir_all(parent)?;
-    }
-    std::fs::write(&path, pretty)?;
-
-    Ok(path.to_string_lossy().into_owned())
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    fn minimal_document() -> Value {
-        serde_json::json!({
-            "Path": {
-                "path": {
-                    "id": "p1",
-                    "head": "s1"
-                },
-                "steps": [{
-                    "step": {
-                        "id": "s1",
-                        "actor": "human:tester",
-                        "timestamp": "2024-01-01T00:00:00Z"
-                    },
-                    "change": {
-                        "file.txt": { "raw": "@@ -0,0 +1 @@\n+hi\n" }
-                    }
-                }]
-            }
-        })
-    }
-
-    #[test]
-    fn save_document_writes_pretty_json() {
-        let dir = tempfile::tempdir().unwrap();
-        let path = dir.path().join("out.path.json");
-        let written =
-            save_document(minimal_document(), path.to_string_lossy().into_owned()).expect("save");
-        let body = std::fs::read_to_string(&written).unwrap();
-        // Pretty output uses indentation.
-        assert!(body.contains("  \"path\""));
-        // Round-trips through Document.
-        let doc = toolpath::v1::Document::from_json(&body).expect("parse");
-        match doc {
-            toolpath::v1::Document::Path(p) => {
-                assert_eq!(p.path.id, "p1");
-                assert_eq!(p.path.head, "s1");
-            }
-            _ => panic!("expected Path"),
-        }
-    }
-
-    #[test]
-    fn save_document_rejects_empty_path() {
-        let err = save_document(minimal_document(), String::new()).unwrap_err();
-        assert!(matches!(err, DesktopError::InvalidInput(_)));
-    }
-
-    #[test]
-    fn save_document_rejects_invalid_payload() {
-        let err = save_document(
-            serde_json::json!({ "nonsense": true }),
-            "/tmp/should-not-be-written".into(),
-        )
-        .unwrap_err();
-        assert!(matches!(err, DesktopError::InvalidInput(_)));
-    }
-}
diff --git a/crates/toolpath-desktop/src/commands/keychain.rs b/crates/toolpath-desktop/src/commands/keychain.rs
deleted file mode 100644
index 51a1bc6..0000000
--- a/crates/toolpath-desktop/src/commands/keychain.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-use crate::error::{DesktopError, DesktopResult};
-
-const SERVICE: &str = "dev.pathbase.toolpath-desktop";
-const ACCOUNT: &str = "github-pat";
-
-fn entry() -> DesktopResult<keyring::Entry> {
-    keyring::Entry::new(SERVICE, ACCOUNT)
-        .map_err(|e| DesktopError::Keychain(format!("open entry: {e}")))
-}
-
-/// Backend-only helper used by `derive::derive_github`. Not exposed to the
-/// frontend because we never want a raw token crossing the IPC boundary.
-pub(crate) fn read_github_token() -> DesktopResult<String> {
-    let entry = entry()?;
-    match entry.get_password() {
-        Ok(tok) if !tok.is_empty() => Ok(tok),
-        Ok(_) => Err(DesktopError::Auth("GitHub token is empty".into())),
-        Err(keyring::Error::NoEntry) => Err(DesktopError::Auth("GitHub token not set".into())),
-        Err(e) => Err(DesktopError::Keychain(format!("read: {e}"))),
-    }
-}
-
-#[tauri::command]
-pub fn github_set_token(token: String) -> DesktopResult<()> {
-    if token.trim().is_empty() {
-        return Err(DesktopError::InvalidInput("token is empty".into()));
-    }
-    let entry = entry()?;
-    entry
-        .set_password(token.trim())
-        .map_err(|e| DesktopError::Keychain(format!("write: {e}")))?;
-    Ok(())
-}
-
-#[tauri::command]
-pub fn github_has_token() -> DesktopResult<bool> {
-    let entry = entry()?;
-    match entry.get_password() {
-        Ok(tok) => Ok(!tok.is_empty()),
-        Err(keyring::Error::NoEntry) => Ok(false),
-        Err(e) => Err(DesktopError::Keychain(format!("probe: {e}"))),
-    }
-}
-
-#[tauri::command]
-pub fn github_clear_token() -> DesktopResult<()> {
-    let entry = entry()?;
-    match entry.delete_credential() {
-        Ok(()) => Ok(()),
-        Err(keyring::Error::NoEntry) => Ok(()),
-        Err(e) => Err(DesktopError::Keychain(format!("delete: {e}"))),
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn set_token_rejects_empty_string() {
-        let err = github_set_token("   ".into()).unwrap_err();
-        assert!(matches!(err, DesktopError::InvalidInput(_)));
-    }
-}
diff --git a/crates/toolpath-desktop/src/commands/mod.rs b/crates/toolpath-desktop/src/commands/mod.rs
deleted file mode 100644
index 6237393..0000000
--- a/crates/toolpath-desktop/src/commands/mod.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-pub mod derive;
-pub mod export;
-pub mod keychain;
-pub mod sources;
-pub mod upload;
diff --git a/crates/toolpath-desktop/src/commands/sources.rs b/crates/toolpath-desktop/src/commands/sources.rs
deleted file mode 100644
index 1271271..0000000
--- a/crates/toolpath-desktop/src/commands/sources.rs
+++ /dev/null
@@ -1,564 +0,0 @@
-use serde::Serialize;
-use std::path::PathBuf;
-use tauri::{AppHandle, Emitter};
-
-use crate::error::{DesktopError, DesktopResult};
-
-/// A Claude Code project as listed for the source browser.
-#[derive(Debug, Clone, Serialize)]
-pub struct ClaudeProjectSummary {
-    /// Original project path (e.g. `/Users/alex/myproject`).
-    pub project_path: String,
-    /// Friendly display name (basename of the project path).
-    pub display_name: String,
-    /// Number of logical conversations (chain heads) found for this project.
-    pub session_count: usize,
-    /// Timestamp of the most recent activity across all sessions, if known.
-    pub last_activity: Option<String>,
-}
-
-/// A single conversation shown in the session picker.
-#[derive(Debug, Clone, Serialize)]
-pub struct ClaudeSessionSummary {
-    /// Chain-head session ID.
-    pub session_id: String,
-    /// Short title derived from the first user message (truncated).
-    pub title: Option<String>,
-    /// Total turn count across the chain.
-    pub turn_count: usize,
-    /// ISO 8601 timestamp of the first entry.
-    pub started_at: Option<String>,
-    /// ISO 8601 timestamp of the most recent entry.
-    pub last_activity: Option<String>,
-}
-
-/// One branch entry shown in the git picker.
-#[derive(Debug, Clone, Serialize)]
-pub struct GitBranchSummary {
-    pub name: String,
-    pub head_short: String,
-    pub subject: String,
-    pub author: String,
-    pub timestamp: String,
-}
-
-fn claude_manager() -> toolpath_claude::ClaudeConvo {
-    toolpath_claude::ClaudeConvo::new()
-}
-
-/// Cheap recency hint for a Claude project: max mtime across its `.jsonl`
-/// files, formatted RFC3339. Stat-only — no JSONL parsing.
-fn newest_jsonl_mtime(
-    manager: &toolpath_claude::ClaudeConvo,
-    project_path: &str,
-) -> Option<String> {
-    let dir = manager.resolver().project_dir(project_path).ok()?;
-    let entries = std::fs::read_dir(&dir).ok()?;
-    let mut newest: Option<std::time::SystemTime> = None;
-    for entry in entries.flatten() {
-        let path = entry.path();
-        if path.extension().and_then(|e| e.to_str()) != Some("jsonl") {
-            continue;
-        }
-        if let Ok(modified) = entry.metadata().and_then(|m| m.modified()) {
-            if newest.is_none_or(|prev| modified > prev) {
-                newest = Some(modified);
-            }
-        }
-    }
-    newest.map(|t| chrono::DateTime::<chrono::Utc>::from(t).to_rfc3339())
-}
-
-#[tauri::command]
-pub fn list_claude_projects() -> DesktopResult<Vec<ClaudeProjectSummary>> {
-    let manager = claude_manager();
-    if !manager.exists() {
-        return Ok(Vec::new());
-    }
-
-    let project_paths = manager
-        .list_projects()
-        .map_err(|e| DesktopError::Source(format!("list projects: {e}")))?;
-
-    let mut out = Vec::with_capacity(project_paths.len());
-    for project_path in project_paths {
-        let display_name = PathBuf::from(&project_path)
-            .file_name()
-            .and_then(|s| s.to_str().map(|s| s.to_string()))
-            .unwrap_or_else(|| project_path.clone());
-
-        // list_conversation_metadata is sorted most-recent-first; use
-        // its length for session count and the first entry's timestamp
-        // for last_activity. Skip projects we can't read rather than failing
-        // the whole call (a single bad project shouldn't hide the rest).
-        let (session_count, last_activity) = match manager.list_conversation_metadata(&project_path)
-        {
-            Ok(metas) => {
-                let last = metas
-                    .first()
-                    .and_then(|m| m.last_activity)
-                    .map(|t| t.to_rfc3339());
-                (metas.len(), last)
-            }
-            Err(_) => (0, None),
-        };
-
-        out.push(ClaudeProjectSummary {
-            project_path,
-            display_name,
-            session_count,
-            last_activity,
-        });
-    }
-
-    // Most recently active projects first.
-    out.sort_by(|a, b| b.last_activity.cmp(&a.last_activity));
-    Ok(out)
-}
-
-#[tauri::command]
-pub fn list_claude_sessions(project_path: String) -> DesktopResult<Vec<ClaudeSessionSummary>> {
-    let manager = claude_manager();
-    let metadata = manager
-        .list_conversation_metadata(&project_path)
-        .map_err(|e| DesktopError::Source(format!("list sessions: {e}")))?;
-
-    let mut out = Vec::with_capacity(metadata.len());
-    for meta in metadata {
-        let title = manager
-            .read_conversation(&project_path, &meta.session_id)
-            .ok()
-            .and_then(|c| c.title(80));
-
-        out.push(ClaudeSessionSummary {
-            session_id: meta.session_id,
-            title,
-            turn_count: meta.message_count,
-            started_at: meta.started_at.map(|t| t.to_rfc3339()),
-            last_activity: meta.last_activity.map(|t| t.to_rfc3339()),
-        });
-    }
-    Ok(out)
-}
-
-/// Status of an AI-agent integration on this machine.
-///
-/// Serialised as `kebab-case` so the frontend branches on plain strings.
-#[derive(Debug, Clone, Copy, Serialize)]
-#[serde(rename_all = "kebab-case")]
-#[allow(dead_code)] // ComingSoon is used for future agents that haven't landed yet.
-pub enum AgentStatus {
-    /// Detected on disk and usable right now.
-    Available,
-    /// Known integration, but no data / tooling detected.
-    Unavailable,
-    /// Support in development — not yet wired up.
-    ComingSoon,
-}
-
-/// Top-level agent entry shown on the "Agents" picker.
-#[derive(Debug, Clone, Serialize)]
-pub struct AgentSummary {
-    /// Stable identifier used in navigation and as a routing key.
-    pub id: String,
-    /// Display name.
-    pub name: String,
-    /// One-line blurb — what this agent is.
-    pub tagline: String,
-    pub status: AgentStatus,
-    /// Human-readable note. For `Unavailable`: why not. For `ComingSoon`:
-    /// what's in flight. `None` when `Available` with nothing to add.
-    pub reason: Option<String>,
-    /// Absolute path where this agent's data lives, when known.
-    pub data_path: Option<String>,
-}
-
-/// Enumerate known agent integrations + auto-detect which are usable.
-///
-/// New entries are added here as agent support lands. The list is small
-/// enough that a stream variant isn't worth it — the whole thing serialises
-/// in under a millisecond.
-#[tauri::command]
-pub fn list_agents() -> DesktopResult<Vec<AgentSummary>> {
-    let manager = claude_manager();
-    let claude_available = manager.exists();
-    let claude_path = manager
-        .claude_dir_path()
-        .ok()
-        .map(|p| p.to_string_lossy().into_owned());
-
-    Ok(vec![
-        AgentSummary {
-            id: "claude-code".into(),
-            name: "Claude Code".into(),
-            tagline: "Anthropic's terminal-native coding agent.".into(),
-            status: if claude_available {
-                AgentStatus::Available
-            } else {
-                AgentStatus::Unavailable
-            },
-            reason: if claude_available {
-                None
-            } else {
-                Some(
-                    "No ~/.claude directory found — use Claude Code at least once and try again."
-                        .into(),
-                )
-            },
-            data_path: claude_path,
-        },
-        {
-            let pi = toolpath_pi::PiConvo::new();
-            let pi_available = pi.exists();
-            let pi_path = std::path::PathBuf::from(std::env::var("HOME").unwrap_or_default())
-                .join(".pi/agent/sessions");
-            AgentSummary {
-                id: "pi-dev".into(),
-                name: "pi.dev".into(),
-                tagline: "pi.dev agent session traces.".into(),
-                status: if pi_available {
-                    AgentStatus::Available
-                } else {
-                    AgentStatus::Unavailable
-                },
-                reason: if pi_available {
-                    None
-                } else {
-                    Some(
-                        "No ~/.pi/agent/sessions directory found — run a pi.dev session and try again."
-                            .into(),
-                    )
-                },
-                data_path: pi_available.then(|| pi_path.to_string_lossy().into_owned()),
-            }
-        },
-    ])
-}
-
-/// Minimal per-project payload emitted from [`list_claude_projects_stream`].
-///
-/// Only cheap-to-compute fields: display name, a file-count proxy for session
-/// count, and a stat-based recency hint (max mtime across the project's JSONL
-/// files). Avoids per-session JSONL parsing.
-#[derive(Debug, Clone, Serialize)]
-pub struct ClaudeProjectQuick {
-    pub project_path: String,
-    pub display_name: String,
-    pub session_count: usize,
-    pub last_activity: Option<String>,
-}
-
-/// Streaming variant of [`list_claude_projects`].
-///
-/// Emits one `claude:project` event per project as its cheap data becomes
-/// available, then a terminal `claude:projects-done` event. The work runs
-/// on Tauri's command worker pool — it's synchronous from the command's
-/// perspective, so a panic turns into a rejected invoke instead of vanishing.
-///
-/// Frontend must subscribe to the events before invoking.
-#[tauri::command]
-pub fn list_claude_projects_stream(app: AppHandle) -> DesktopResult<()> {
-    let manager = claude_manager();
-    if !manager.exists() {
-        let _ = app.emit("claude:projects-done", ());
-        return Ok(());
-    }
-
-    let paths = match manager.list_projects() {
-        Ok(p) => p,
-        Err(e) => {
-            let _ = app.emit("claude:projects-error", format!("list projects: {e}"));
-            let _ = app.emit("claude:projects-done", ());
-            return Ok(());
-        }
-    };
-
-    for path in paths {
-        let display_name = PathBuf::from(&path)
-            .file_name()
-            .and_then(|s| s.to_str().map(|s| s.to_string()))
-            .unwrap_or_else(|| path.clone());
-
-        // Chain heads only — cheap directory walk + chain index lookup,
-        // no per-session JSONL parsing.
-        let session_count = manager
-            .list_conversations(&path)
-            .map(|v| v.len())
-            .unwrap_or(0);
-
-        let last_activity = newest_jsonl_mtime(&manager, &path);
-
-        let _ = app.emit(
-            "claude:project",
-            ClaudeProjectQuick {
-                project_path: path,
-                display_name,
-                session_count,
-                last_activity,
-            },
-        );
-    }
-
-    let _ = app.emit("claude:projects-done", ());
-    Ok(())
-}
-
-/// Per-session payload emitted from [`list_claude_sessions_stream`].
-///
-/// Mirrors [`ClaudeSessionSummary`] but without the expensive `title` field.
-/// Frontends can fetch titles lazily for sessions the user hovers or
-/// explicitly selects.
-#[derive(Debug, Clone, Serialize)]
-pub struct ClaudeSessionQuick {
-    pub project_path: String,
-    pub session_id: String,
-    pub turn_count: usize,
-    pub started_at: Option<String>,
-    pub last_activity: Option<String>,
-}
-
-/// Streaming variant of [`list_claude_sessions`].
-///
-/// Emits one `claude:session` per session (metadata only, no title), then a
-/// terminal `claude:sessions-done` event with the project path as payload so
-/// the frontend can match the completion to the right project.
-#[tauri::command]
-pub fn list_claude_sessions_stream(app: AppHandle, project_path: String) -> DesktopResult<()> {
-    let manager = claude_manager();
-    match manager.list_conversation_metadata(&project_path) {
-        Ok(metadata) => {
-            for meta in metadata {
-                let payload = ClaudeSessionQuick {
-                    project_path: project_path.clone(),
-                    session_id: meta.session_id,
-                    turn_count: meta.message_count,
-                    started_at: meta.started_at.map(|t| t.to_rfc3339()),
-                    last_activity: meta.last_activity.map(|t| t.to_rfc3339()),
-                };
-                let _ = app.emit("claude:session", payload);
-            }
-        }
-        Err(e) => {
-            let _ = app.emit(
-                "claude:sessions-error",
-                format!("list sessions for {project_path}: {e}"),
-            );
-        }
-    }
-    let _ = app.emit("claude:sessions-done", project_path);
-    Ok(())
-}
-
-/// Fetch the first-user-message title for a single session.
-///
-/// Requires reading the full JSONL, so it's deliberately split out from the
-/// session-list stream. Call lazily (e.g. on hover) or in a background pass
-/// after the session list has rendered.
-#[tauri::command]
-pub fn claude_session_title(
-    project_path: String,
-    session_id: String,
-) -> DesktopResult<Option<String>> {
-    let manager = claude_manager();
-    let convo = manager
-        .read_conversation(&project_path, &session_id)
-        .map_err(|e| DesktopError::Source(format!("read {session_id}: {e}")))?;
-    Ok(convo.title(80))
-}
-
-/// Fetch a human-readable label for a project: the title of its most-recent
-/// session. Called lazily per-project after [`list_claude_projects_stream`]
-/// emits, so the project list paints fast and the titles fill in after.
-#[tauri::command]
-pub fn claude_project_latest_title(project_path: String) -> DesktopResult<Option<String>> {
-    let manager = claude_manager();
-    let metadata = manager
-        .list_conversation_metadata(&project_path)
-        .map_err(|e| DesktopError::Source(format!("list sessions: {e}")))?;
-    let Some(head) = metadata.into_iter().next() else {
-        return Ok(None);
-    };
-    let convo = manager
-        .read_conversation(&project_path, &head.session_id)
-        .map_err(|e| DesktopError::Source(format!("read {}: {e}", head.session_id)))?;
-    Ok(convo.title(80))
-}
-
-// ─── pi.dev ──────────────────────────────────────────────────────────────
-
-fn pi_manager() -> toolpath_pi::PiConvo {
-    toolpath_pi::PiConvo::new()
-}
-
-#[derive(Debug, Clone, Serialize)]
-pub struct PiProjectQuick {
-    pub project_path: String,
-    pub display_name: String,
-    pub session_count: usize,
-}
-
-#[derive(Debug, Clone, Serialize)]
-pub struct PiSessionQuick {
-    pub project_path: String,
-    pub session_id: String,
-    pub entry_count: usize,
-    pub timestamp: String,
-}
-
-/// Streaming variant of pi.dev project listing.
-#[tauri::command]
-pub fn list_pi_projects_stream(app: AppHandle) -> DesktopResult<()> {
-    let manager = pi_manager();
-    if !manager.exists() {
-        let _ = app.emit("pi:projects-done", ());
-        return Ok(());
-    }
-
-    let projects = match manager.list_projects() {
-        Ok(p) => p,
-        Err(e) => {
-            let _ = app.emit("pi:projects-error", format!("list projects: {e}"));
-            let _ = app.emit("pi:projects-done", ());
-            return Ok(());
-        }
-    };
-
-    for project in projects {
-        let display_name = project.clone();
-        let session_count = manager
-            .list_sessions(&project)
-            .map(|v| v.len())
-            .unwrap_or(0);
-        let _ = app.emit(
-            "pi:project",
-            PiProjectQuick {
-                project_path: project,
-                display_name,
-                session_count,
-            },
-        );
-    }
-
-    let _ = app.emit("pi:projects-done", ());
-    Ok(())
-}
-
-/// Streaming variant of pi.dev session listing.
-#[tauri::command]
-pub fn list_pi_sessions_stream(app: AppHandle, project_path: String) -> DesktopResult<()> {
-    let manager = pi_manager();
-    match manager.list_sessions(&project_path) {
-        Ok(sessions) => {
-            for s in sessions {
-                let _ = app.emit(
-                    "pi:session",
-                    PiSessionQuick {
-                        project_path: project_path.clone(),
-                        session_id: s.id,
-                        entry_count: s.entry_count,
-                        timestamp: s.timestamp,
-                    },
-                );
-            }
-        }
-        Err(e) => {
-            let _ = app.emit(
-                "pi:sessions-error",
-                format!("list sessions for {project_path}: {e}"),
-            );
-        }
-    }
-    let _ = app.emit("pi:sessions-done", project_path);
-    Ok(())
-}
-
-#[tauri::command]
-pub fn list_git_branches(repo_path: String) -> DesktopResult<Vec<GitBranchSummary>> {
-    let repo = git2::Repository::open(&repo_path)
-        .map_err(|e| DesktopError::Source(format!("open repo {repo_path}: {e}")))?;
-    let branches = toolpath_git::list_branches(&repo)
-        .map_err(|e| DesktopError::Source(format!("list branches: {e:#}")))?;
-
-    Ok(branches
-        .into_iter()
-        .map(|b| GitBranchSummary {
-            name: b.name,
-            head_short: b.head_short,
-            subject: b.subject,
-            author: b.author,
-            timestamp: b.timestamp,
-        })
-        .collect())
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use toolpath_claude::{ClaudeConvo, PathResolver};
-
-    fn setup_manager_with_project() -> (tempfile::TempDir, ClaudeConvo) {
-        let temp = tempfile::tempdir().unwrap();
-        let claude_dir = temp.path().join(".claude");
-        let project_dir = claude_dir.join("projects/-test-project");
-        std::fs::create_dir_all(&project_dir).unwrap();
-
-        let entry1 = r#"{"type":"user","uuid":"uuid-1","timestamp":"2024-01-01T00:00:00Z","cwd":"/test/project","message":{"role":"user","content":"Hello world"}}"#;
-        let entry2 = r#"{"type":"assistant","uuid":"uuid-2","timestamp":"2024-01-01T00:00:01Z","message":{"role":"assistant","content":"Hi there"}}"#;
-        std::fs::write(
-            project_dir.join("session-abc.jsonl"),
-            format!("{entry1}\n{entry2}\n"),
-        )
-        .unwrap();
-
-        let resolver = PathResolver::new().with_claude_dir(&claude_dir);
-        let manager = ClaudeConvo::with_resolver(resolver);
-        (temp, manager)
-    }
-
-    #[test]
-    fn session_summary_includes_title_and_turns() {
-        let (_temp, manager) = setup_manager_with_project();
-        let metas = manager
-            .list_conversation_metadata("/test/project")
-            .expect("list");
-        assert_eq!(metas.len(), 1);
-        assert_eq!(metas[0].message_count, 2);
-
-        let convo = manager
-            .read_conversation("/test/project", &metas[0].session_id)
-            .expect("read");
-        assert_eq!(convo.title(80).as_deref(), Some("Hello world"));
-    }
-
-    #[test]
-    fn list_git_branches_opens_temp_repo() {
-        let dir = tempfile::tempdir().unwrap();
-        let repo = git2::Repository::init(dir.path()).unwrap();
-        {
-            let mut config = repo.config().unwrap();
-            config.set_str("user.name", "Test").unwrap();
-            config.set_str("user.email", "t@t.t").unwrap();
-        }
-        let mut index = repo.index().unwrap();
-        let file = dir.path().join("f.txt");
-        std::fs::write(&file, "hi").unwrap();
-        index.add_path(std::path::Path::new("f.txt")).unwrap();
-        index.write().unwrap();
-        let tree_id = index.write_tree().unwrap();
-        let tree = repo.find_tree(tree_id).unwrap();
-        let sig = repo.signature().unwrap();
-        repo.commit(Some("HEAD"), &sig, &sig, "init", &tree, &[])
-            .unwrap();
-
-        let branches =
-            list_git_branches(dir.path().to_string_lossy().into_owned()).expect("branches");
-        assert!(!branches.is_empty());
-    }
-
-    #[test]
-    fn list_git_branches_rejects_non_repo() {
-        let dir = tempfile::tempdir().unwrap();
-        let err = list_git_branches(dir.path().to_string_lossy().into_owned()).unwrap_err();
-        assert!(matches!(err, DesktopError::Source(_)));
-    }
-}
diff --git a/crates/toolpath-desktop/src/commands/upload.rs b/crates/toolpath-desktop/src/commands/upload.rs
deleted file mode 100644
index fd8deb2..0000000
--- a/crates/toolpath-desktop/src/commands/upload.rs
+++ /dev/null
@@ -1,80 +0,0 @@
-use serde::Serialize;
-use serde_json::Value;
-
-use crate::error::{DesktopError, DesktopResult};
-
-/// Response returned from a successful (stubbed) Pathbase upload.
-///
-/// The real Pathbase service does not exist yet. We validate the payload,
-/// log an event to stderr so it's visible in `cargo tauri dev`, and hand
-/// back a mock URL the frontend can display. When the real API is ready,
-/// replace the body of [`upload_to_pathbase`] without changing the IPC
-/// signature.
-#[derive(Debug, Clone, Serialize)]
-pub struct UploadResult {
-    pub url: String,
-    pub status: &'static str,
-    pub stub: bool,
-}
-
-const MAX_UPLOAD_BYTES: usize = 50 * 1024 * 1024;
-
-#[tauri::command]
-pub fn upload_to_pathbase(document: Value) -> DesktopResult<UploadResult> {
-    let json = serde_json::to_string(&document)?;
-
-    if json.len() > MAX_UPLOAD_BYTES {
-        return Err(DesktopError::Upload(format!(
-            "document is {} bytes, over the 50MB stub limit",
-            json.len()
-        )));
-    }
-
-    let doc = toolpath::v1::Document::from_json(&json)
-        .map_err(|e| DesktopError::InvalidInput(format!("invalid document: {e}")))?;
-
-    let (kind, id) = match &doc {
-        toolpath::v1::Document::Step(s) => ("step", s.step.id.clone()),
-        toolpath::v1::Document::Path(p) => ("path", p.path.id.clone()),
-        toolpath::v1::Document::Graph(g) => ("graph", g.graph.id.clone()),
-    };
-
-    let token = uuid::Uuid::new_v4().to_string();
-    let url = format!("https://pathbase.dev/stub/{kind}/{token}");
-
-    eprintln!("[toolpath-desktop] (stub) would upload {kind} id={id} -> {url}");
-
-    Ok(UploadResult {
-        url,
-        status: "stubbed",
-        stub: true,
-    })
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn upload_returns_stub_url_for_valid_path() {
-        let doc = serde_json::json!({
-            "Path": {
-                "path": { "id": "pr-1", "head": "s1" },
-                "steps": [{
-                    "step": { "id": "s1", "actor": "human:x", "timestamp": "2024-01-01T00:00:00Z" },
-                    "change": { "file.txt": { "raw": "@@ -0,0 +1 @@\n+hi\n" } }
-                }]
-            }
-        });
-        let res = upload_to_pathbase(doc).expect("ok");
-        assert!(res.stub);
-        assert_eq!(res.status, "stubbed");
-        assert!(res.url.starts_with("https://pathbase.dev/stub/path/"));
-    }
-
-    #[test]
-    fn upload_rejects_bad_document() {
-        let err = upload_to_pathbase(serde_json::json!({ "wat": 1 })).unwrap_err();
-        assert!(matches!(err, DesktopError::InvalidInput(_)));
-    }
-}
diff --git a/crates/toolpath-desktop/src/error.rs b/crates/toolpath-desktop/src/error.rs
deleted file mode 100644
index 67529c1..0000000
--- a/crates/toolpath-desktop/src/error.rs
+++ /dev/null
@@ -1,78 +0,0 @@
-use serde::Serialize;
-use thiserror::Error;
-
-/// Error type returned across the Tauri IPC boundary.
-///
-/// All command results use `Result<T, DesktopError>`. Errors are serialised to
-/// JSON with a stable `code` discriminator so the frontend can branch on it
-/// without string-matching.
-#[derive(Debug, Error)]
-pub enum DesktopError {
-    #[error("source error: {0}")]
-    Source(String),
-
-    #[error("derive error: {0}")]
-    Derive(String),
-
-    #[error("invalid input: {0}")]
-    InvalidInput(String),
-
-    #[error("io error: {0}")]
-    Io(String),
-
-    #[error("auth error: {0}")]
-    Auth(String),
-
-    #[error("keychain error: {0}")]
-    Keychain(String),
-
-    #[error("upload error: {0}")]
-    Upload(String),
-}
-
-impl DesktopError {
-    fn code(&self) -> &'static str {
-        match self {
-            Self::Source(_) => "source",
-            Self::Derive(_) => "derive",
-            Self::InvalidInput(_) => "invalid_input",
-            Self::Io(_) => "io",
-            Self::Auth(_) => "auth",
-            Self::Keychain(_) => "keychain",
-            Self::Upload(_) => "upload",
-        }
-    }
-}
-
-impl Serialize for DesktopError {
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: serde::Serializer,
-    {
-        use serde::ser::SerializeStruct;
-        let mut state = serializer.serialize_struct("DesktopError", 2)?;
-        state.serialize_field("code", self.code())?;
-        state.serialize_field("message", &self.to_string())?;
-        state.end()
-    }
-}
-
-impl From<std::io::Error> for DesktopError {
-    fn from(err: std::io::Error) -> Self {
-        DesktopError::Io(err.to_string())
-    }
-}
-
-impl From<serde_json::Error> for DesktopError {
-    fn from(err: serde_json::Error) -> Self {
-        DesktopError::Io(format!("json: {err}"))
-    }
-}
-
-impl From<anyhow::Error> for DesktopError {
-    fn from(err: anyhow::Error) -> Self {
-        DesktopError::Derive(format!("{err:#}"))
-    }
-}
-
-pub type DesktopResult<T> = std::result::Result<T, DesktopError>;
diff --git a/crates/toolpath-desktop/src/main.rs b/crates/toolpath-desktop/src/main.rs
deleted file mode 100644
index 70b42f7..0000000
--- a/crates/toolpath-desktop/src/main.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-#![cfg_attr(
-    all(not(debug_assertions), target_os = "windows"),
-    windows_subsystem = "windows"
-)]
-
-mod commands;
-mod error;
-mod tray;
-
-use commands::{derive, export, keychain, sources, upload};
-
-fn main() {
-    tauri::Builder::default()
-        .plugin(tauri_plugin_dialog::init())
-        .plugin(tauri_plugin_opener::init())
-        .plugin(tauri_plugin_positioner::init())
-        .setup(|app| {
-            tray::install(app)?;
-            Ok(())
-        })
-        .invoke_handler(tauri::generate_handler![
-            sources::list_agents,
-            sources::list_claude_projects,
-            sources::list_claude_projects_stream,
-            sources::list_claude_sessions,
-            sources::list_claude_sessions_stream,
-            sources::claude_session_title,
-            sources::claude_project_latest_title,
-            sources::list_pi_projects_stream,
-            sources::list_pi_sessions_stream,
-            sources::list_git_branches,
-            derive::derive_claude,
-            derive::derive_pi,
-            derive::derive_git,
-            derive::derive_github,
-            export::save_document,
-            upload::upload_to_pathbase,
-            keychain::github_set_token,
-            keychain::github_has_token,
-            keychain::github_clear_token,
-            tray::tray_stats_now,
-            tray::tray_open_main,
-            tray::tray_open_trace,
-        ])
-        .run(tauri::generate_context!())
-        .expect("error while running toolpath-desktop");
-}
diff --git a/crates/toolpath-desktop/src/tray.rs b/crates/toolpath-desktop/src/tray.rs
deleted file mode 100644
index 01f17f2..0000000
--- a/crates/toolpath-desktop/src/tray.rs
+++ /dev/null
@@ -1,587 +0,0 @@
-//! System tray / menu-bar mode.
-//!
-//! Sets up a macOS menu-bar icon with a small popover window and a 30-second
-//! background poller that walks every agent-conversation provider
-//! (`toolpath-claude`, `-gemini`, `-codex`, `-opencode`, `-pi`) and reports
-//! how many sessions have been active recently.
-//!
-//! The popover is a second Tauri window (`label = "popover"`) configured as
-//! undecorated and hidden by default in `tauri.conf.json`. Left-clicking the
-//! tray icon toggles it; clicking the menu's "Open Toolpath" brings up the
-//! main window.
-//!
-//! The poller emits a `tray:stats` event with a [`TrayStats`] payload. The
-//! popover frontend subscribes to that event and also invokes
-//! `tray_stats_now` for an immediate value on open.
-
-use std::sync::Arc;
-use std::thread;
-use std::time::Duration;
-
-use chrono::{DateTime, Utc};
-use serde::Serialize;
-use tauri::menu::{Menu, MenuItem};
-use tauri::tray::{MouseButton, MouseButtonState, TrayIconBuilder, TrayIconEvent};
-use tauri::{AppHandle, Emitter, Manager};
-use tauri_plugin_positioner::{Position, WindowExt};
-
-/// How often the background poller re-scans providers.
-const POLL_INTERVAL: Duration = Duration::from_secs(30);
-
-/// Sessions touched within this window count as "active now".
-const ACTIVE_WINDOW_SECS: i64 = 120;
-
-/// Sessions touched within this window count as "recent" (shown in list).
-const RECENT_WINDOW_SECS: i64 = 24 * 60 * 60;
-
-/// Maximum number of recent sessions to include in the popover payload.
-const MAX_RECENT_SESSIONS: usize = 20;
-
-/// Per-provider counts, emitted in [`TrayStats`].
-#[derive(Debug, Clone, Default, Serialize)]
-pub struct ProviderCounts {
-    pub provider: &'static str,
-    /// Sessions with `last_activity` within [`ACTIVE_WINDOW_SECS`].
-    pub active: usize,
-    /// Sessions with `last_activity` within [`RECENT_WINDOW_SECS`].
-    pub recent: usize,
-}
-
-/// One entry in the popover's "recent sessions" list.
-#[derive(Debug, Clone, Serialize)]
-pub struct RecentSession {
-    pub provider: &'static str,
-    /// Project key (empty string for codex/opencode which are project-less).
-    pub project: String,
-    pub session_id: String,
-    pub last_activity: String,
-}
-
-/// Payload for the `tray:stats` event (and `tray_stats_now` response).
-#[derive(Debug, Clone, Default, Serialize)]
-pub struct TrayStats {
-    pub counts: Vec<ProviderCounts>,
-    pub recent: Vec<RecentSession>,
-    pub total_active: usize,
-    pub total_recent: usize,
-    /// RFC3339 timestamp of the poll that produced this snapshot.
-    pub polled_at: String,
-}
-
-/// Compute a fresh stats snapshot by walking every provider.
-///
-/// Errors from individual providers are swallowed — a broken pi install
-/// shouldn't hide claude activity. This is the same defensive posture the
-/// existing `list_claude_projects` command takes.
-pub fn collect_stats() -> TrayStats {
-    let now = Utc::now();
-    let mut counts: Vec<ProviderCounts> = Vec::new();
-    let mut recent: Vec<RecentSession> = Vec::new();
-
-    collect_claude(&now, &mut counts, &mut recent);
-    collect_gemini(&now, &mut counts, &mut recent);
-    collect_codex(&now, &mut counts, &mut recent);
-    collect_opencode(&now, &mut counts, &mut recent);
-    collect_pi(&now, &mut counts, &mut recent);
-
-    recent.sort_by(|a, b| b.last_activity.cmp(&a.last_activity));
-    recent.truncate(MAX_RECENT_SESSIONS);
-
-    let total_active = counts.iter().map(|c| c.active).sum();
-    let total_recent = counts.iter().map(|c| c.recent).sum();
-
-    TrayStats {
-        counts,
-        recent,
-        total_active,
-        total_recent,
-        polled_at: now.to_rfc3339(),
-    }
-}
-
-fn bucket(
-    now: &DateTime<Utc>,
-    last: Option<DateTime<Utc>>,
-) -> (bool /* active */, bool /* recent */) {
-    let Some(ts) = last else {
-        return (false, false);
-    };
-    let delta = now.signed_duration_since(ts).num_seconds();
-    if delta < 0 {
-        // Future timestamps (clock skew) — treat as active.
-        return (true, true);
-    }
-    (delta <= ACTIVE_WINDOW_SECS, delta <= RECENT_WINDOW_SECS)
-}
-
-fn collect_claude(
-    now: &DateTime<Utc>,
-    counts: &mut Vec<ProviderCounts>,
-    recent: &mut Vec<RecentSession>,
-) {
-    let mgr = toolpath_claude::ClaudeConvo::new();
-    let mut c = ProviderCounts {
-        provider: "claude",
-        ..Default::default()
-    };
-    if !mgr.exists() {
-        counts.push(c);
-        return;
-    }
-    let projects = mgr.list_projects().unwrap_or_default();
-    for project in projects {
-        let metas = match mgr.list_conversation_metadata(&project) {
-            Ok(m) => m,
-            Err(_) => continue,
-        };
-        for meta in metas {
-            let (active, is_recent) = bucket(now, meta.last_activity);
-            if active {
-                c.active += 1;
-            }
-            if is_recent {
-                c.recent += 1;
-                if let Some(ts) = meta.last_activity {
-                    recent.push(RecentSession {
-                        provider: "claude",
-                        project: project.clone(),
-                        session_id: meta.session_id,
-                        last_activity: ts.to_rfc3339(),
-                    });
-                }
-            }
-        }
-    }
-    counts.push(c);
-}
-
-fn collect_gemini(
-    now: &DateTime<Utc>,
-    counts: &mut Vec<ProviderCounts>,
-    recent: &mut Vec<RecentSession>,
-) {
-    let mgr = toolpath_gemini::GeminiConvo::new();
-    let mut c = ProviderCounts {
-        provider: "gemini",
-        ..Default::default()
-    };
-    if !mgr.exists() {
-        counts.push(c);
-        return;
-    }
-    let projects = mgr.list_projects().unwrap_or_default();
-    for project in projects {
-        let metas = match mgr.list_conversation_metadata(&project) {
-            Ok(m) => m,
-            Err(_) => continue,
-        };
-        for meta in metas {
-            let (active, is_recent) = bucket(now, meta.last_activity);
-            if active {
-                c.active += 1;
-            }
-            if is_recent {
-                c.recent += 1;
-                if let Some(ts) = meta.last_activity {
-                    recent.push(RecentSession {
-                        provider: "gemini",
-                        project: project.clone(),
-                        session_id: meta.session_uuid.clone(),
-                        last_activity: ts.to_rfc3339(),
-                    });
-                }
-            }
-        }
-    }
-    counts.push(c);
-}
-
-fn collect_codex(
-    now: &DateTime<Utc>,
-    counts: &mut Vec<ProviderCounts>,
-    recent: &mut Vec<RecentSession>,
-) {
-    let mgr = toolpath_codex::CodexConvo::new();
-    let mut c = ProviderCounts {
-        provider: "codex",
-        ..Default::default()
-    };
-    let sessions = mgr.list_sessions().unwrap_or_default();
-    for s in sessions {
-        let (active, is_recent) = bucket(now, s.last_activity);
-        if active {
-            c.active += 1;
-        }
-        if is_recent {
-            c.recent += 1;
-            if let Some(ts) = s.last_activity {
-                recent.push(RecentSession {
-                    provider: "codex",
-                    project: s
-                        .cwd
-                        .as_ref()
-                        .map(|p| p.to_string_lossy().into_owned())
-                        .unwrap_or_default(),
-                    session_id: s.id,
-                    last_activity: ts.to_rfc3339(),
-                });
-            }
-        }
-    }
-    counts.push(c);
-}
-
-fn collect_opencode(
-    now: &DateTime<Utc>,
-    counts: &mut Vec<ProviderCounts>,
-    recent: &mut Vec<RecentSession>,
-) {
-    let mgr = toolpath_opencode::OpencodeConvo::new();
-    let mut c = ProviderCounts {
-        provider: "opencode",
-        ..Default::default()
-    };
-    let sessions = mgr.list_sessions().unwrap_or_default();
-    for s in sessions {
-        let (active, is_recent) = bucket(now, s.last_activity);
-        if active {
-            c.active += 1;
-        }
-        if is_recent {
-            c.recent += 1;
-            if let Some(ts) = s.last_activity {
-                recent.push(RecentSession {
-                    provider: "opencode",
-                    project: s.project_id.clone(),
-                    session_id: s.id,
-                    last_activity: ts.to_rfc3339(),
-                });
-            }
-        }
-    }
-    counts.push(c);
-}
-
-fn collect_pi(
-    now: &DateTime<Utc>,
-    counts: &mut Vec<ProviderCounts>,
-    recent: &mut Vec<RecentSession>,
-) {
-    let mgr = toolpath_pi::PiConvo::new();
-    let mut c = ProviderCounts {
-        provider: "pi",
-        ..Default::default()
-    };
-    if !mgr.exists() {
-        counts.push(c);
-        return;
-    }
-    let projects = mgr.list_projects().unwrap_or_default();
-    for project in projects {
-        let sessions = match mgr.list_sessions(&project) {
-            Ok(s) => s,
-            Err(_) => continue,
-        };
-        for s in sessions {
-            let ts = DateTime::parse_from_rfc3339(&s.timestamp)
-                .ok()
-                .map(|t| t.with_timezone(&Utc));
-            let (active, is_recent) = bucket(now, ts);
-            if active {
-                c.active += 1;
-            }
-            if is_recent {
-                c.recent += 1;
-                if let Some(ts) = ts {
-                    recent.push(RecentSession {
-                        provider: "pi",
-                        project: project.clone(),
-                        session_id: s.id,
-                        last_activity: ts.to_rfc3339(),
-                    });
-                }
-            }
-        }
-    }
-    counts.push(c);
-}
-
-/// IPC command — returns the current stats without waiting for the next poll.
-///
-/// Called by the popover on open so it doesn't display stale data for up to
-/// 30 seconds after being shown.
-#[tauri::command]
-pub fn tray_stats_now() -> TrayStats {
-    collect_stats()
-}
-
-/// IPC command — show + focus the main window.
-///
-/// Called by the popover's "Open Toolpath" button. Mirrors the tray menu's
-/// `tray:open` action so the popover doesn't need a separate permission for
-/// addressing another window by label from JS.
-#[tauri::command]
-pub fn tray_open_main(app: AppHandle) {
-    show_main(&app);
-    hide_popover(&app);
-}
-
-/// Payload pushed to the main window after a trace is derived on the tray
-/// side. The main window's reducer consumes this as a `DeriveSucceeded` msg.
-#[derive(Debug, Clone, Serialize)]
-pub struct TraceOpenedPayload {
-    pub doc: serde_json::Value,
-    pub source: String,
-    pub filename: String,
-}
-
-/// IPC command — derive the trace for a single session and surface it in the
-/// main window's preview.
-///
-/// Callable from the popover when the user clicks a recent session. Only the
-/// providers with a desktop-side derive command are supported (claude, pi).
-/// For gemini/codex/opencode the popover should disable the row instead of
-/// calling this.
-#[tauri::command]
-pub fn tray_open_trace(
-    app: AppHandle,
-    provider: String,
-    project: String,
-    session_id: String,
-) -> Result<(), String> {
-    let (doc, source, filename) = match provider.as_str() {
-        "claude" => {
-            let value = crate::commands::derive::derive_claude(
-                project.clone(),
-                vec![session_id.clone()],
-                /* include_thinking */ false,
-            )
-            .map_err(|e| e.to_string())?;
-            let filename = format!(
-                "claude-{}-{}.path.json",
-                basename_slug(&project),
-                short(&session_id)
-            );
-            (value, format!("Claude: {}", basename(&project)), filename)
-        }
-        "pi" => {
-            let value = crate::commands::derive::derive_pi(
-                project.clone(),
-                vec![session_id.clone()],
-                /* include_thinking */ false,
-            )
-            .map_err(|e| e.to_string())?;
-            let filename = format!(
-                "pi-{}-{}.path.json",
-                basename_slug(&project),
-                short(&session_id)
-            );
-            (value, format!("pi.dev: {}", basename(&project)), filename)
-        }
-        // Not wired up in the desktop backend yet. The popover disables
-        // rows for these, but we still reject politely if one slips through.
-        "gemini" | "codex" | "opencode" => {
-            return Err(format!(
-                "Opening {provider} traces from Quick View isn't wired up yet."
-            ));
-        }
-        other => return Err(format!("unknown provider: {other}")),
-    };
-
-    let payload = TraceOpenedPayload {
-        doc,
-        source,
-        filename,
-    };
-    show_main(&app);
-    hide_popover(&app);
-    app.emit_to("main", "trace:opened", payload)
-        .map_err(|e| e.to_string())?;
-    Ok(())
-}
-
-fn basename(path: &str) -> String {
-    if path.is_empty() {
-        return String::new();
-    }
-    std::path::Path::new(path)
-        .file_name()
-        .and_then(|s| s.to_str())
-        .map(|s| s.to_string())
-        .unwrap_or_else(|| path.to_string())
-}
-
-fn basename_slug(path: &str) -> String {
-    basename(path)
-        .chars()
-        .map(|c| if c.is_ascii_alphanumeric() { c } else { '-' })
-        .collect()
-}
-
-fn short(id: &str) -> &str {
-    id.get(..8).unwrap_or(id)
-}
-
-/// Install the tray icon, menu, event handlers, and the background poller.
-///
-/// Called from `setup` in `main.rs`. Safe to call once per app lifetime.
-pub fn install(app: &tauri::App) -> tauri::Result<()> {
-    let handle = app.handle().clone();
-
-    let menu_open = MenuItem::with_id(app, "tray:open", "Open Toolpath", true, None::<&str>)?;
-    let menu_refresh = MenuItem::with_id(app, "tray:refresh", "Refresh now", true, None::<&str>)?;
-    let menu_quit = MenuItem::with_id(app, "tray:quit", "Quit", true, None::<&str>)?;
-    let menu = Menu::with_items(app, &[&menu_open, &menu_refresh, &menu_quit])?;
-
-    let _tray = TrayIconBuilder::with_id("main")
-        .icon(
-            app.default_window_icon()
-                .cloned()
-                .expect("bundle provides a default window icon"),
-        )
-        .icon_as_template(true)
-        .title("·")
-        .tooltip("Toolpath — no activity")
-        .menu(&menu)
-        .show_menu_on_left_click(false)
-        .on_menu_event(move |app, event| match event.id.as_ref() {
-            "tray:quit" => app.exit(0),
-            "tray:open" => show_main(app),
-            "tray:refresh" => publish_stats(app),
-            _ => {}
-        })
-        .on_tray_icon_event(|tray, event| {
-            let app = tray.app_handle();
-            tauri_plugin_positioner::on_tray_event(app, &event);
-            if let TrayIconEvent::Click {
-                button: MouseButton::Left,
-                button_state: MouseButtonState::Up,
-                ..
-            } = event
-            {
-                toggle_popover(app);
-            }
-        })
-        .build(app)?;
-
-    // Kick off the poller. One initial publish so the tray title reflects
-    // reality without a 30s wait.
-    let poll_handle = Arc::new(handle.clone());
-    thread::spawn(move || {
-        publish_stats(&poll_handle);
-        loop {
-            thread::sleep(POLL_INTERVAL);
-            publish_stats(&poll_handle);
-        }
-    });
-
-    Ok(())
-}
-
-fn show_main(app: &AppHandle) {
-    if let Some(w) = app.get_webview_window("main") {
-        let _ = w.show();
-        let _ = w.unminimize();
-        let _ = w.set_focus();
-    }
-}
-
-fn toggle_popover(app: &AppHandle) {
-    let Some(w) = app.get_webview_window("popover") else {
-        return;
-    };
-    let visible = w.is_visible().unwrap_or(false);
-    if visible {
-        let _ = w.hide();
-        return;
-    }
-    let _ = w.move_window(Position::TrayBottomCenter);
-    let _ = w.show();
-    let _ = w.set_focus();
-}
-
-fn hide_popover(app: &AppHandle) {
-    if let Some(w) = app.get_webview_window("popover") {
-        let _ = w.hide();
-    }
-}
-
-fn publish_stats(app: &AppHandle) {
-    let stats = collect_stats();
-
-    // Update the tray title with a compact activity indicator.
-    if let Some(tray) = app.tray_by_id("main") {
-        let title = match stats.total_active {
-            0 => "·".to_string(),
-            n => format!("● {n}"),
-        };
-        let tooltip = format!(
-            "Toolpath — {} active, {} recent",
-            stats.total_active, stats.total_recent
-        );
-        let _ = tray.set_title(Some(&title));
-        let _ = tray.set_tooltip(Some(&tooltip));
-    }
-
-    let _ = app.emit("tray:stats", stats);
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use chrono::Duration;
-
-    #[test]
-    fn bucket_classifies_activity_windows() {
-        let now = Utc::now();
-
-        // None → neither active nor recent.
-        assert_eq!(bucket(&now, None), (false, false));
-
-        // 10s ago → both active and recent.
-        assert_eq!(
-            bucket(&now, Some(now - Duration::seconds(10))),
-            (true, true)
-        );
-
-        // 5 minutes ago → recent but not active.
-        assert_eq!(
-            bucket(&now, Some(now - Duration::minutes(5))),
-            (false, true)
-        );
-
-        // 2 days ago → neither.
-        assert_eq!(bucket(&now, Some(now - Duration::days(2))), (false, false));
-
-        // Future timestamp (clock skew) → both (optimistic).
-        assert_eq!(
-            bucket(&now, Some(now + Duration::seconds(30))),
-            (true, true)
-        );
-    }
-
-    #[test]
-    fn collect_stats_runs_without_panic() {
-        // With no provider data on this machine the call should still
-        // produce a well-formed snapshot with all five provider slots.
-        let s = collect_stats();
-        let providers: Vec<_> = s.counts.iter().map(|c| c.provider).collect();
-        assert_eq!(
-            providers,
-            vec!["claude", "gemini", "codex", "opencode", "pi"]
-        );
-    }
-
-    #[test]
-    fn basename_slug_handles_paths_and_empty() {
-        assert_eq!(basename_slug("/Users/alex/proj"), "proj");
-        assert_eq!(basename_slug("my project!"), "my-project-");
-        assert_eq!(basename_slug(""), "");
-    }
-
-    #[test]
-    fn short_truncates_session_ids() {
-        assert_eq!(short("0123456789abcdef"), "01234567");
-        assert_eq!(short("abc"), "abc");
-    }
-}
diff --git a/crates/toolpath-desktop/tauri.conf.json b/crates/toolpath-desktop/tauri.conf.json
deleted file mode 100644
index db5fa24..0000000
--- a/crates/toolpath-desktop/tauri.conf.json
+++ /dev/null
@@ -1,60 +0,0 @@
-{
-  "$schema": "https://schema.tauri.app/config/2",
-  "productName": "Toolpath",
-  "version": "0.1.0",
-  "identifier": "dev.pathbase.toolpath-desktop",
-  "build": {
-    "frontendDist": "frontend/dist",
-    "devUrl": "http://localhost:1420",
-    "beforeDevCommand": {
-      "script": "bun install && bun run dev",
-      "cwd": "./frontend"
-    },
-    "beforeBuildCommand": {
-      "script": "bun install && bun run build",
-      "cwd": "./frontend"
-    }
-  },
-  "app": {
-    "withGlobalTauri": true,
-    "windows": [
-      {
-        "label": "main",
-        "title": "Toolpath",
-        "width": 430,
-        "height": 900,
-        "minWidth": 360,
-        "minHeight": 640,
-        "resizable": true,
-        "fullscreen": false
-      },
-      {
-        "label": "popover",
-        "url": "popover.html",
-        "title": "Toolpath Quick View",
-        "width": 340,
-        "height": 420,
-        "resizable": false,
-        "decorations": false,
-        "transparent": false,
-        "alwaysOnTop": true,
-        "skipTaskbar": true,
-        "visible": false,
-        "focus": false
-      }
-    ],
-    "security": {
-      "csp": null
-    }
-  },
-  "bundle": {
-    "active": true,
-    "targets": ["app", "dmg", "msi", "deb", "appimage"],
-    "icon": [
-      "icons/icon.png"
-    ],
-    "category": "DeveloperTool",
-    "shortDescription": "Export agent traces as Toolpath documents",
-    "longDescription": "Select Claude Code sessions, git branches, or GitHub PRs, preview the provenance DAG, and export to a local .path.json file or upload to Pathbase."
-  }
-}
diff --git a/scripts/release.sh b/scripts/release.sh
index 1de9646..cc25286 100755
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -21,9 +21,8 @@ set -euo pipefail
 #       toolpath-opencode (depends on toolpath, toolpath-convo)
 #       toolpath-pi       (depends on toolpath, toolpath-convo)
 #   3. toolpath-cli       (depends on all of the above)
-#      toolpath-desktop   (depends on toolpath, toolpath-claude, toolpath-git, toolpath-github)
 
-ALL_CRATES=(toolpath toolpath-convo toolpath-git toolpath-github toolpath-dot toolpath-md toolpath-claude toolpath-gemini toolpath-codex toolpath-opencode toolpath-pi toolpath-cli toolpath-desktop)
+ALL_CRATES=(toolpath toolpath-convo toolpath-git toolpath-github toolpath-dot toolpath-md toolpath-claude toolpath-gemini toolpath-codex toolpath-opencode toolpath-pi toolpath-cli)
 
 DRY_RUN=""
 AUTO_YES=""
@@ -218,8 +217,7 @@ for crate in toolpath-git toolpath-github toolpath-dot toolpath-md toolpath-clau
     fi
 done
 
-# Tier 3: CLI binary + desktop app (depend on everything above)
+# Tier 3: CLI binary (depends on everything above)
 publish toolpath-cli
-publish toolpath-desktop
 
 echo "=== done ==="
diff --git a/scripts/run-desktop.sh b/scripts/run-desktop.sh
deleted file mode 100755
index 3c8b9ee..0000000
--- a/scripts/run-desktop.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-cd crates/toolpath-desktop && cargo tauri dev
diff --git a/site/_data/crates.json b/site/_data/crates.json
index f17693b..d0c939b 100644
--- a/site/_data/crates.json
+++ b/site/_data/crates.json
@@ -94,13 +94,5 @@
     "docs": "https://docs.rs/toolpath-cli",
     "crate": "https://crates.io/crates/toolpath-cli",
     "role": "One binary called `path` that ties everything together: derive, query, render, merge, track, validate."
-  },
-  {
-    "name": "toolpath-desktop",
-    "version": "0.1.0",
-    "description": "Desktop app for selecting, previewing, and exporting traces",
-    "docs": "https://docs.rs/toolpath-desktop",
-    "crate": "https://crates.io/crates/toolpath-desktop",
-    "role": "Tauri 2 app that wraps the derive/preview/export flow for non-technical users. Companion to Pathbase — users pick Claude sessions, git branches, or PRs, preview the DAG, and export locally or upload."
   }
 ]
diff --git a/site/pages/crates.md b/site/pages/crates.md
index c77c655..aee5f77 100644
--- a/site/pages/crates.md
+++ b/site/pages/crates.md
@@ -22,12 +22,9 @@ toolpath-cli (binary: path)
  +-- toolpath-pi      -> toolpath, toolpath-convo
  +-- toolpath-dot     -> toolpath
  +-- toolpath-md      -> toolpath
-
-toolpath-desktop (Tauri 2 app)
- +-- toolpath, toolpath-claude, toolpath-git, toolpath-github
 ```
 
-Cross-dependencies between satellite crates: `toolpath-claude -> toolpath-convo`, `toolpath-gemini -> toolpath-convo`, `toolpath-codex -> toolpath-convo`, `toolpath-opencode -> toolpath-convo`, `toolpath-pi -> toolpath-convo`. `toolpath-desktop` is a leaf — nothing depends on it.
+Cross-dependencies between satellite crates: `toolpath-claude -> toolpath-convo`, `toolpath-gemini -> toolpath-convo`, `toolpath-codex -> toolpath-convo`, `toolpath-opencode -> toolpath-convo`, `toolpath-pi -> toolpath-convo`.
 
 {% for crate in crates %}