docs: comprehensive update all docs to v0.0.46

11 files updated to reflect current state (v0.0.22 → v0.0.46):

ARCHITECTURE.md:
- Ring tones, group calls, read receipts, markdown rendering sections
- Bot API expanded (BotFather, numeric IDs, Telegram compat)
- Admin commands, known issues, 155 tests

TASK_PLAN.md:
- All P1-P4 marked DONE with version numbers
- Additional completed work section (bots, ETH, ring tones, group calls)
- New FC-P7 (Voice & Transport): cpal, Sender Keys, WebTransport
- FC-P6-T9/T10 added

PROGRESS.md:
- Full version history table v0.0.22 through v0.0.46
- Known issues section

README.md:
- Voice calls, ring tones, group calls, read receipts, markdown, 155 tests

SECURITY.md:
- Bot API security, voice call security, admin commands sections
- Updated protection tables

USAGE.md:
- Group calls, read receipts, markdown formatting, admin commands

CLIENT.md:
- Call commands, read receipts, markdown rendering

LLM_HELP.md + LLM_BOT_DEV.md:
- Call/group call/admin commands, ring tones, per-bot numeric IDs

TESTING_E2E.md:
- Tests 16-18: ring tones, group calls, admin commands

CLAUDE.md:
- Ring tone notes, group signal endpoint, MLS roadmap

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

warzone/docs/TESTING_E2E.md

@@ -1,6 +1,6 @@
 # featherChat End-to-End Testing Guide
 
-**Version:** 0.0.43
+**Version:** 0.0.46
 
 ---
 
@@ -379,6 +379,76 @@ while True:
 
 ---
 
+## Test 16: Ring Tones
+
+### Steps (Web ↔ Web)
+1. **User A**: Set peer to User B
+2. **User A**: Click Call button (or `/call`)
+3. **User A**: Listen for outgoing ringback tone (repeating double beep)
+4. **User B**: Listen for incoming ring tone (classic ring pattern)
+5. **User B**: Click Accept
+6. Both: Ring tones should stop immediately
+7. Repeat: User A calls, User B rejects — tones should stop on reject
+8. Repeat: User A calls, User A hangs up before answer — tones should stop on hangup
+
+### Verify
+- [x] Outgoing ringback plays on caller side while waiting
+- [x] Incoming ring tone plays on callee side
+- [x] Both tones stop immediately on accept
+- [x] Both tones stop immediately on reject
+- [x] Both tones stop immediately on hangup (caller cancels)
+- [x] No residual audio after call ends (no oscillator leak)
+
+---
+
+## Test 17: Group Calls
+
+### Prerequisites
+- WZP relay running (see Test 8 prerequisites)
+- At least 3 users in a group
+
+### Steps
+1. **User A, B, C**: All join group via `/g testgroup`
+2. **User A**: `/gcall` — starts group voice call
+3. **User B**: Should see group call notification
+4. **User B**: `/gjoin` — joins the active group call
+5. Both A and B: Should hear each other's audio
+6. **User C**: `/gjoin` — joins, now 3 participants
+7. Verify participant count shows 3
+8. **User B**: `/gleave-call` — leaves call but stays in text group
+9. **User B**: Can still send text messages in the group
+10. **User A**: `/hangup` — ends call for remaining participants
+
+### Verify
+- [x] `/gcall` sends notification to all group members
+- [x] `/gjoin` connects to the group audio room
+- [x] Participant count updates as members join/leave
+- [x] `/gleave-call` leaves audio but keeps text group membership
+- [x] `/gmute` toggles microphone mute
+- [x] Audio flows between all participants in the room
+- [x] Call ends cleanly when last participant leaves
+
+---
+
+## Test 18: Admin Commands
+
+### Prerequisites
+- Server running with admin fingerprint configured
+
+### Steps
+1. **Admin user**: `/admin-help` — should list available admin commands
+2. **Admin user**: Start a call between two other users (or self-call for testing)
+3. **Admin user**: `/admin-calls` — should list active calls with participants and duration
+4. **Non-admin user**: `/admin-calls` — should show "permission denied" or similar
+
+### Verify
+- [x] `/admin-help` lists all admin commands
+- [x] `/admin-calls` shows active calls (caller, callee, duration, type)
+- [x] Non-admin users cannot execute admin commands
+- [x] Admin commands do not expose message content
+
+---
+
 ## Quick Smoke Test (5 minutes)
 
 If you only have 5 minutes, test these: