The GUI frontends landed with README/CLI/operations docs but no packaging
coverage. Add a PACKAGING.md section with the command/script/requirement
table for both frontends, note why stdlib tkinter is still an optdepend
rather than a hard dependency, and record that packaging must not grant the
GUIs privileges beyond the operator's own account.
Add the matching PKGBUILD optdepends (`tk`, `pyside6`), plus
`python-pystray`/`python-pillow` for the tray applet, which were never
listed when it shipped. Also add `gui/` to the CLAUDE.md architecture notes
and state snapshot.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JX86xeoBJVBb16qHkDf53K
