Phase 1: Dashboard Polish + Theming (#457) (#458)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

docs/scratchpads/mosaic-stack-go-live-mvp-20260222.md

@@ -6,15 +6,36 @@
 ## Original Mission Prompt
 
 ```
-(Paste the mission prompt here on first session)
+Continue Mosaic Stack Go-Live MVP from existing state.
+- Mission: Ship Mosaic Stack MVP: operational dashboard with theming, task ingestion,
+  one visible agent cycle, deployed and smoke-tested.
+- 4 milestones: Dashboard Polish+Theming, Task Ingestion Pipeline,
+  Agent Cycle Visibility, Deploy+Smoke Test
+- Prior work: MS15-DashboardShell complete (PRs #451-454)
+- Design ref: mosaic-stack-website/docs/designs/round-5/claude/01/dashboard.html
 ```
 
 ## Planning Decisions
 
+### 2026-02-22: Phase-1 Task Breakdown
+
+Baseline assessment:
+
+- Lint: PASS, Typecheck: PASS, Tests: FAIL (9 failures)
+- UI Button.test.tsx: 4 fails (old Tailwind class assertions vs new CSS token Button)
+- Web page.test.tsx: 5 fails (old widget layout vs Phase 3 rebuild)
+- Design system + theming already substantially complete from MS15
+- 5 live widgets all use mock data (real data integration is phase-2)
+- 4 legacy widgets unused (hardcoded light theme, pre-Phase 3)
+
+Tasks created: MS-P1-001 through MS-P1-004, issue #457, milestone Go-Live-MVP-Phase1 (0.0.16)
+Estimated total: ~50K tokens
+
 ## Session Log
 
-| Session | Date | Milestone | Tasks Done | Outcome |
-| ------- | ---- | --------- | ---------- | ------- |
+| Session | Date       | Milestone | Tasks Done | Outcome                                     |
+| ------- | ---------- | --------- | ---------- | ------------------------------------------- |
+| S1      | 2026-02-22 | phase-1   | 0/4        | In progress — bootstrap complete, executing |
 
 ## Open Questions