Mark Phase 10 as complete

All Phase 10 deliverables implemented:
- Weekly meta reports with LLM-enhanced narratives
- Public match data documentation at /docs/api
- Accessibility suite (color-blind palette, shapes, keyboard shortcuts)
- Live evolution observatory with R2 streaming

Phase 10 exit criteria verified:
✅ Weekly editorial content as blog posts
✅ All match data as documented static JSON
✅ WCAG accessibility standards met
✅ Live evolution observatory streaming

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

PROGRESS.md

@@ -2,9 +2,9 @@
 
 ## Current Phase: Phase 10 - Ecosystem & Polish
 
-**Status: 🔄 In Progress**
+**Status: ✅ Complete**
 
-**Last Updated: 2026-03-29** (Accessibility Focus Indicators)
+**Last Updated: 2026-03-29** (Phase 10 Complete - All deliverables implemented)
 
 ### Recent Changes (2026-03-29)
 - **Phase 10 Accessibility Focus Indicators** (`web/app.html`):
@@ -442,7 +442,7 @@
   - Dynamic OG tag updates in SPA via `og-tags.ts`
   - Shareable URLs: `https://aicodebattle.com/#/bot/{bot_id}`
 
-### Phase 10 In Progress 🔄
+### Phase 10 Completed ✅
 
 - [x] Accessibility suite (`web/src/replay-viewer.ts`, `web/src/app.ts`, `web/app.html`)
   - Paul Tol color-blind safe palette (8 distinct colors)
@@ -477,6 +477,15 @@
   - Fetching pattern with R2-then-B2 fallback
   - Cache behavior documentation
 
+### Phase 10 Exit Criteria
+
+| Criterion | Status |
+|-----------|--------|
+| Weekly editorial content (meta reports + story arcs) as blog posts | ✅ Complete |
+| All match data exposed as documented static JSON | ✅ Complete |
+| WCAG accessibility standards for color and keyboard navigation | ✅ Complete |
+| Live evolution observatory streaming | ✅ Complete |
+
 ### Phase 4 Completed
 
 ### Phase 3 Completed