feat(apollo-vertex): ai-chat flow and message components [4/6]

[petervachon]

Summary

Adds ai-chat-flow (branching/choices UI), ai-chat-message (full message renderer with tool calls, citations, and attachments), and agenthub adapter tools.

Stack

pr/1a-aichat-foundation  →  main          merged
pr/1b-aichat-display     →  1a            merged
pr/1c-aichat-input       →  1b            merged
pr/1d-aichat-messages    →  1c            ← this PR, draft
pr/1e-aichat-chat        →  1d            draft
pr/2-aichat-templates    →  1e            draft

Manual stack — do not review until #546 merges.

Supersedes #542 / #511 — re-split to keep each PR under 800–1000 LoC.

🤖 Generated with Claude Code

[github-actions]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Review	Updated (PT)
apollo-design	🟢 Ready	Preview, Logs	Apr 29, 2026, 01:20:14 PM
apollo-docs	🟢 Ready	Preview, Logs	Apr 29, 2026, 01:19:22 PM
apollo-landing	🟢 Ready	Preview, Logs	Apr 29, 2026, 01:17:46 PM
apollo-ui-react	🟢 Ready	Preview, Logs	Apr 29, 2026, 01:18:52 PM
apollo-vertex	❌ Failed: Building: Summary: /vercel/path0/.turbo/runs/3D2xQ3WkfcfWoFTasA8Jmkdksso.json Building: Failed: ...	N/A, Logs	Apr 29, 2026, 01:19:17 PM

[github-actions]

Dependency License Review

• ✅ 2103 package(s) scanned
• ✅ No license issues found
• ⚠️ 15 package(s) excluded (see details below)

License distribution

License	Packages
MIT	1824
ISC	104
Apache-2.0	69
BSD-3-Clause	30
BSD-2-Clause	24
Copyright 2022, UiPath, all rights reserved	9
BlueOak-1.0.0	8
MPL-2.0	5
MIT OR Apache-2.0	3
MIT-0	3
Unknown	3
Unlicense	3
CC0-1.0	3
LGPL-3.0-or-later	2
(MIT OR Apache-2.0)	2
Python-2.0	1
CC-BY-4.0	1
(MPL-2.0 OR Apache-2.0)	1
BSD	1
Artistic-2.0	1
(WTFPL OR MIT)	1
(BSD-2-Clause OR MIT OR Apache-2.0)	1
CC-BY-3.0	1
0BSD	1
(MIT OR CC0-1.0)	1
MIT AND ISC	1

Excluded packages

Package	Version	License	Reason
@img/sharp-libvips-linux-x64	1.2.4	LGPL-3.0-or-later	LGPL pre-built binary, not linked
@img/sharp-libvips-linuxmusl-x64	1.2.4	LGPL-3.0-or-later	LGPL pre-built binary, not linked
@uipath/apollo-angular-elements	5.86.3	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/apollo-core	4.35.0, 4.35.1	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/apollo-fonts	1.25.8	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/apollo-icons	1.33.7	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/apollo-mui5	2.31.26	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/portal-shell	3.351.4	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/portal-shell-react	3.149.36	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/portal-shell-types	3.325.2	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/portal-shell-util	1.112.0	Copyright 2022, UiPath, all rights reserved	UiPath first-party package
@uipath/apollo-lab	25.12.0	Unknown	UiPath first-party package
@uipath/telemetry-client-web	5.1.0	Unknown	UiPath first-party package
khroma	2.1.0	Unknown	MIT per GitHub repo, missing license field in package.json
hyperx	2.5.4	BSD	BSD-2-Clause per LICENSE file, non-SPDX "BSD" in package.json

[petervachon]

This PR is part of the original ai-chat stack which has been superseded by a restructured version. Closing in favour of the new stack:

• feat(apollo-vertex): ai-chat shell — branding, empty state, thinking indicator [1/5] #628 — Shell, empty state, thinking indicator [1/5]
• feat(apollo-vertex): ai-chat code blocks — syntax-highlighted fenced code with copy [2/5] #629 — Syntax-highlighted code blocks [2/5]
• feat(apollo-vertex): ai-chat message actions — copy, feedback, edit, regenerate [3/5] #630 — Message actions: copy, feedback, edit, regenerate [3/5]
• feat(apollo-vertex): ai-chat file attachments — upload, paste images, preview [4/5] #631 — File attachments: upload, paste images, preview [4/5]
• feat(apollo-vertex): ai-chat text selection — Ask AI floating pill + quote chip [5/5] #632 — Text selection: Ask AI floating pill + quote chip [5/5]

The new stack is reorganised by user-facing feature rather than component type, includes all the same functionality plus attachments and text selection, and has a clean single-commit-per-PR history.