docs(09-01): complete E2E test infrastructure plan

- 09-01-SUMMARY.md: 29 tests across 7 flow specs, 3-browser coverage
- STATE.md: advanced to 94%, added 3 decisions, updated session
- ROADMAP.md: phase 9 in progress (1/3 summaries)
- REQUIREMENTS.md: marked QA-01, QA-05, QA-06 complete

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: completed
-stopped_at: Phase 9 context gathered
-last_updated: "2026-03-26T04:11:53.479Z"
+stopped_at: Completed 09-01-PLAN.md (E2E test infrastructure + 7 flow specs)
+last_updated: "2026-03-26T04:38:33.393Z"
 last_activity: 2026-03-23 — Completed 03-02 onboarding wizard, Slack OAuth, BYO API keys
 progress:
   total_phases: 9
   completed_phases: 8
-  total_plans: 33
-  completed_plans: 33
+  total_plans: 36
+  completed_plans: 34
   percent: 100
 ---
 
@@ -85,6 +85,7 @@ Progress: [██████████] 100%
 | Phase 08-mobile-pwa P01 | 7min | 2 tasks | 19 files |
 | Phase 08-mobile-pwa P03 | 8min | 2 tasks | 15 files |
 | Phase 08-mobile-pwa P04 | verification | 1 tasks | 0 files |
+| Phase 09-testing-qa P01 | 5min | 2 tasks | 12 files |
 
 ## Accumulated Context
 
@@ -197,6 +198,9 @@ Recent decisions affecting current work:
 - [Phase 08-mobile-pwa]: urlBase64ToArrayBuffer returns ArrayBuffer not Uint8Array<ArrayBufferLike> — TypeScript strict mode requires ArrayBuffer for PushManager.subscribe applicationServerKey
 - [Phase 08-mobile-pwa]: Connected user tracking via module-level _connected_users dict in web.py — avoids Redis overhead for in-process WebSocket state
 - [Phase 08-mobile-pwa]: All six MOB requirements approved by human testing on mobile viewports — no rework required
+- [Phase 09-testing-qa]: fullyParallel: false for Playwright CI stability — shared DB state causes race conditions with parallel test workers
+- [Phase 09-testing-qa]: serviceWorkers: block in playwright.config.ts — Serwist intercepts test requests without this flag
+- [Phase 09-testing-qa]: routeWebSocket regex /\/chat\/ws\// not string URL — portal derives WS base from NEXT_PUBLIC_API_URL which is absolute and environment-dependent
 
 ### Roadmap Evolution
 
@@ -212,6 +216,6 @@ None — all phases complete.
 
 ## Session Continuity
 
-Last session: 2026-03-26T04:11:53.475Z
-Stopped at: Phase 9 context gathered
-Resume file: .planning/phases/09-testing-qa/09-CONTEXT.md
+Last session: 2026-03-26T04:38:33.389Z
+Stopped at: Completed 09-01-PLAN.md (E2E test infrastructure + 7 flow specs)
+Resume file: None