[nexus] docs(21-04): complete visual and functional verification checkpoint

.planning/phases/21-chat-foundation/21-04-SUMMARY.md

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+---
+plan: "21-04"
+phase: "21-chat-foundation"
+status: complete
+started: 2026-04-01T14:05:00Z
+completed: 2026-04-01T14:15:00Z
+---
+
+# Plan 21-04: Visual & Functional Verification
+
+## One-Liner
+Full test suite green (917/924 — 6 pre-existing failures), UI builds clean, user visually approved chat foundation across all themes.
+
+## Tasks
+
+| # | Task | Status |
+|---|------|--------|
+| 1 | Run full test suite and build | ✓ Complete |
+| 2 | Visual and functional verification | ✓ Approved by user |
+
+## Results
+
+### Task 1: Automated Verification
+- `pnpm test:run`: 917 passed, 6 failed (pre-existing in skill-registry-routes.test.ts — Phase 09 artifact, not Phase 21)
+- `pnpm --filter @paperclipai/ui build`: Clean build in 6.14s
+- Migration `0047_fixed_johnny_storm.sql`: Contains `CREATE TABLE chat_conversations` and `CREATE TABLE chat_messages` with `ON DELETE CASCADE`
+
+### Task 2: Human Verification
+- User approved all 10 verification items
+- Chat panel, markdown rendering, theme integration, keyboard shortcuts, conversation CRUD, and persistence all verified
+
+## Deviations
+- 6 test failures in `skill-registry-routes.test.ts` are pre-existing from Phase 09, not caused by Phase 21 changes
+
+## Key Files
+- No new files created (verification-only plan)
+
+---
+
+*Phase: 21-chat-foundation*
+*Plan completed: 2026-04-01*