feat(web/ui7): migrate note detail, palace, gaps/prompts pages, broadcast banner
Phase UI7 — completes the note detail surface, the Palace knowledge
exploration page + its panels, the knowledge-gaps page, the prompts
page empty states, and the broadcast banner. Brings the ratchet down
to 14 raw controls / 21 legacy class matches — both genuine remaining
intentional items (NoteEditor toolbar, hidden file input, audit false
positives matching Tailwind arbitrary values).
notes/[noteId]/page.tsx:
- 'Loading' badge → Badge variant=neutral.
- Loading/error sections → Card.
- Review-state link → Link wrapping Badge.
palace/page.tsx:
- Wing <select> → Select with options=[{value,label}].
palace components:
- PalacePanel.tsx — search input → Input, hall chip → Badge.
- MemoryTimeline.tsx — hall chip → Badge.
- KnowledgeGraphView.tsx — entity query input → Input.
workspaces/[id]/gaps/page.tsx:
- Topic Coverage section → Card, chip → Badge.
- Empty-state + per-gap items → Card.
prompts/page.tsx:
- Loading + empty-state divs → Card.
landing page (/):
- section.surface-card → Card.
- 'Backend-backed web surface' badge → Badge.
- 'Open dashboard'/'Browse workspaces' links → utility classes.
share/[token]/page.tsx:
- Read-only public share badge → Badge.
- Main content surface-card + input-shell body wrapper → Card with
bordered body container.
BroadcastBanner.tsx:
- CTA + Dismiss raw <button> → Button (ghost variant, size sm).
Cumulative ratchet impact since session start:
raw interactive controls 38 → 14 (-24)
legacy global surface classes 92 → 21 (-71)
hardcoded color literals 0 (clean)
direct @bytelyst/ui imports 0 (clean)
Verified: pnpm typecheck, test (96/96), ratchet at new baseline.
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