docs: mark Phase 3 (MVP Finalization) as completed

Update project status to reflect completion of all MVP features:

Phase 3 achievements:
- ✅ Security hardening (CSRF, rate limiting, account lockout)
- ✅ All tests passing (223/223, 71% coverage)
- ✅ PWA features (manifest, service worker, iOS support)
- ✅ Production deployment preparation
- ✅ Operations scripts (backup, restore, health-check)
- ✅ Monitoring documentation

Status: 100% MVP complete, ready for production deployment
Next: Infrastructure setup (server, domain, SSL)

docs/SESSION_CONTEXT.md

@@ -15,14 +15,15 @@
 
 ## Current Status
 
-**Phase:** 2.5 (WebRTC P2P File Transfer) - ✅ COMPLETED
-**Current Phase:** 3 (MVP Finalization) - ⏳ IN PROGRESS
+**Phase:** 3 (MVP Finalization) - ✅ COMPLETED
+**Current Phase:** Ready for Production Deployment
 **Previous Phases:**
+- Phase 2.5 (WebRTC P2P File Transfer) - ✅ COMPLETED
 - Phase 2 (Matches & Ratings API) - ✅ COMPLETED
 - Phase 1.6 (Competition Heats) - ✅ COMPLETED
 - Phase 1.5 (Email & WSDC & Profiles & Security & QR Check-in) - ✅ COMPLETED
-**Progress:** ~95% overall
-**Next Goal:** Production deployment, monitoring
+**Progress:** 100% MVP complete
+**Next Goal:** Production deployment (infrastructure setup)
 
 ### What Works Now
 - ✅ Docker Compose (nginx:8080 + frontend + backend + PostgreSQL)
@@ -52,8 +53,13 @@
 - ✅ Real-time chat (Socket.IO for event & match rooms)
 
 ### What's Missing
-- ⏳ Production deployment & monitoring
-- ⏳ Competition heats UI integration improvements
+- ⏳ Competition heats UI integration improvements (optional UX enhancements)
+
+### Ready for Production
+- ✅ All core features implemented and tested
+- ✅ Security hardening complete
+- ✅ Operations scripts and monitoring ready
+- ⏳ Awaiting infrastructure setup (server, domain, SSL)
 
 ---
 
@@ -465,11 +471,12 @@ RUN apk add --no-cache openssl
   - ✅ STUN servers for NAT traversal
   - ✅ WebRTC detection & fallback UX
   - ✅ E2E encryption (DTLS)
-**Phase 3 Status:** ⏳ IN PROGRESS - MVP Finalization
+**Phase 3 Status:** ✅ COMPLETED - MVP Finalization
   - ✅ Landing page with hero section
   - ✅ WebRTC test suite (7 backend tests passing)
   - ✅ Security hardening (CSRF, Account Lockout, env variables, comprehensive tests)
   - ✅ PWA features (manifest, service worker, icons, iOS support, install prompts)
   - ✅ Test isolation & fixes (223/223 tests passing, 71% coverage)
-  - ⏳ Production deployment
-**Next Goal:** Production deployment, monitoring
+  - ✅ Production operations (backup scripts, health checks, monitoring guide)
+  - ✅ Production Docker configs (Dockerfile.prod, docker-compose profiles)
+**Next Goal:** Infrastructure setup for production deployment