docs(01-02): complete matrix chat handlers plan

- record the 01-02 execution summary and self-check
- update roadmap progress for completed phase 01 plans
- persist state decisions, metrics, and next-plan focus

.planning/STATE.md

@@ -1,3 +1,16 @@
+---
+gsd_state_version: 1.0
+milestone: v1.0
+milestone_name: — Production-ready surfaces
+status: in_progress
+last_updated: "2026-04-02T19:52:40.867Z"
+progress:
+  total_phases: 3
+  completed_phases: 0
+  total_plans: 4
+  completed_plans: 2
+---
+
 # State
 
 ## Project Reference
@@ -5,7 +18,7 @@
 See: .planning/PROJECT.md (updated 2026-04-02)
 
 **Core value:** Пользователь ведёт диалог с Lambda через любой мессенджер без изменения ядра
-**Current focus:** Phase 1 — Matrix QA & Polish
+**Current focus:** Phase 01 — matrix-qa-polish (next: 01-03)
 
 ## Current Phase
 
@@ -14,7 +27,22 @@ See: .planning/PROJECT.md (updated 2026-04-02)
 ## Decisions
 
 - Продолжаем с Threaded Mode несмотря на баги Mac клиента (2026-04-02)
+- Invite flow Matrix переведён на idempotent-проверку через `user_meta.space_id`, а не через invite-room metadata (2026-04-02)
+- Неизвестные Matrix rooms больше не auto-register в роутере; используется явный fallback `unregistered:{room_id}` с warning-логом (2026-04-02)
+- [Phase 01]: Use ChatContext.surface_ref as the Matrix room identifier for !rename updates.
+- [Phase 01]: Keep !archive limited to core archive state in Phase 1; Space child removal remains deferred.
 
 ## Blockers
 
 - Lambda platform SDK не готов — Phase 2 заблокирована до готовности платформы
+
+## Performance Metrics
+
+| Phase | Plan | Duration | Tasks | Files | Recorded |
+| --- | --- | --- | --- | --- | --- |
+| 01 | 02 | 1 min | 2 | 2 | 2026-04-02 |
+
+## Session
+
+- Last session: 2026-04-02T19:52:40Z
+- Stopped at: Completed 01-02-PLAN.md