Package SourceOS Albert plugin so GNOME hotkey + action bus works on clean installs

[mdheller]

We currently rely on a distro-installed launcher binary, but distro packages will not include our SourceOS actions by default.

Goal

• Ensure a clean workstation-v0 install yields a working Super+Space launcher + sourceos action surface.

Current state

• profiles/linux-dev/workstation-v0/ wires a GNOME hotkey and installs a sourceos helper wrapper + status/doctor surfaces.

Problem

• Our previous plan used Albert, but Albert is not OSI-open: SociOS-Linux/albert ships "Albert license v1.1" which permits redistribution only without modification and includes platform targeting restrictions. nixpkgs classifies Albert as unfree, so building/packaging it fails under default policies.

Decision

• Pivot to an open-source launcher palette (Wayland-first):
  • Primary: fuzzel (MIT)
  • Fallbacks: wofi (GPL-3.0-only), rofi (GPL)

Implementation plan

1. Add sourceos palette command (menu UI):
   • Use fuzzel/wofi/rofi dmenu mode to present actions.
   • Actions: status/doctor/open reports, profile apply, common tools.
2. Update GNOME hotkey to call sourceos palette instead of albert toggle.
3. Update installer/doctor:
   • Install a launcher (fuzzel) on GNOME hosts when possible.
   • Doctor requires a launcher when GNOME is detected.
4. Update runbook:
   • Document the new launcher behavior.

Acceptance criteria

• On a fresh GNOME workstation-v0 install:
  • Super+Space opens the SourceOS palette
  • sourceos status --open and sourceos doctor --open are callable from the palette
  • Doctor passes when required components are present
• No dependency on non-OSI licenses.

Notes

• Preserve trust boundaries: avoid silent third-party repo enablement.