deep-chat — UI mockups

Static HTML previews of v1 UI states.

1. First-run empty state — no projects yet
2. New project dialog
3. New session page — project select + chat input
4. Session view — normal chat mode
5. Session with pending edits — sticky pending bar + inline edits + send disabled
6. Palette options — candidate light/dark palettes side-by-side
7. Chat header alternatives — consolidating session metadata into the header (superseded by composer.html)
8. Composer alternatives — compact model · effort + circular context ring (Claude Code reference)