- Picker dropdown: append to document.body with fixed positioning instead
of inside the session-item (which has overflow:hidden). Flips above
when near bottom of viewport.
- Add "+ New project" item at bottom of picker so users can create a
project and assign in one flow.
- Folder button stays visible (blue, 60% opacity) when session belongs
to a project, instead of only appearing on hover.
- Clean up document click listener in all picker item onclick handlers
to prevent stale listener accumulation.
Tests: 214 passed, 23 pre-existing failures, 0 regressions.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>