fix(audio,voice,log): six P0 issues from Korean Windows test

1. Voice Bar 'Leave voice' button removed entirely. TeamSpeak users
   are always in some channel; Discord/Mumble-style leave is the
   wrong model. To stop being heard / hearing, mute mic / speaker.
   To physically move, tap a different channel. The voiceLeave
   bridge call + _onLeaveVoice stay as dead code for now (marked
   unused) so existing tests/integrations don't break.

2. voice_join now confirms the move actually applied server-side
   by polling the snapshot for up to 1.5 s and matching our own
   client's channel against the requested one. If the server
   rejected the move (no permission, wrong password, channel
   full), voice_join rolls the selector back to in_channel=false
   and returns Err so the UI surfaces the failure instead of
   showing a fake 'joined' state.

3. ServerSnapshot + BridgeSnapshot gain own_client_id so the UI
   can identify our row without name-matching. find_own_in reads
   it directly.

4. set_self_muted now also clamps the TransmitModeSelector's
   hard_mute when input is muted server-side. Without this, the
   Opus encoder kept producing frames after setInputMuted(true),
   tsclientlib refused each one with 'Sending audio while muted',
   and the log grew to 200 MB on the Korean host.

5. tsclientlib WARN spam suppressed via tracing filter
   (tsclientlib=error). Belt-and-braces on top of fix 4.

6. Log file is now rotated at every launch (not just when >4 MiB).
   Two generations kept: chanora.log.1 (previous) and
   chanora.log.2 (the one before). The bug that produced 200 MB
   files was a chatty subsystem flooding a single session; the
   per-launch rotate keeps disk use bounded by what one session
   can produce in its lifetime.

Bonus Windows fix (separate from the six but found in the same
log): the Raw Input + Hook backends now signal readiness BEFORE
blocking on GetMessageW. Previously init_tx.send was called after
the loop returned (i.e. on WM_QUIT, which never happens during
arming), so the main thread's 2 s readiness probe always timed
out and the backend reported L0Focused even when registration
succeeded. Both run_raw_input_loop and run_hook_loop now take an
init_tx parameter and call report!(true) right after a successful
registration, and report!(false) on every early-fail return.

cargo check --workspace: clean.
cargo test --workspace --lib: 80 passed / 0 failed / 1 ignored.
flutter analyze: clean (6 pre-existing Radio.groupValue infos).

apps/chanora_flutter/lib/main.dart

@@ -373,6 +373,7 @@ class _BetaHomeState extends State<_BetaHome> {
     }
   }
 
+  // ignore: unused_element
   Future<void> _onLeaveVoice() async {
     try {
       await rust.voiceLeave();
@@ -867,7 +868,6 @@ class _BetaHomeState extends State<_BetaHome> {
                 onToggleMute: _onToggleHardMute,
                 onToggleOutputMute: _toggleOutputMute,
                 onConfigure: _onOpenVoiceSettings,
-                onLeave: _onLeaveVoice,
               ),
               const SizedBox(height: 12),
               Expanded(

apps/chanora_flutter/lib/src/rust/api.dart

@@ -475,6 +475,11 @@ class BridgeSnapshot {
   /// Clients currently known.
   final List<BridgeClient> clients;
 
+  /// Our own client id. Useful for the UI to highlight our row
+  /// in the client list and to know which channel we are in
+  /// without trusting the optimistic local state.
+  final BigInt ownClientId;
+
   const BridgeSnapshot({
     required this.serverName,
     required this.welcomeMessage,
@@ -482,6 +487,7 @@ class BridgeSnapshot {
     required this.version,
     required this.channels,
     required this.clients,
+    required this.ownClientId,
   });
 
   @override
@@ -491,7 +497,8 @@ class BridgeSnapshot {
       platform.hashCode ^
       version.hashCode ^
       channels.hashCode ^
-      clients.hashCode;
+      clients.hashCode ^
+      ownClientId.hashCode;
 
   @override
   bool operator ==(Object other) =>
@@ -503,7 +510,8 @@ class BridgeSnapshot {
           platform == other.platform &&
           version == other.version &&
           channels == other.channels &&
-          clients == other.clients;
+          clients == other.clients &&
+          ownClientId == other.ownClientId;
 }
 
 /// Voice transmit mode mirror (SDD-095). Schema-controlled enum;

apps/chanora_flutter/lib/src/rust/frb_generated.dart

@@ -1172,8 +1172,8 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
   BridgeSnapshot dco_decode_bridge_snapshot(dynamic raw) {
     // Codec=Dco (DartCObject based), see doc to use other codecs
     final arr = raw as List<dynamic>;
-    if (arr.length != 6)
-      throw Exception('unexpected arr length: expect 6 but see ${arr.length}');
+    if (arr.length != 7)
+      throw Exception('unexpected arr length: expect 7 but see ${arr.length}');
     return BridgeSnapshot(
       serverName: dco_decode_String(arr[0]),
       welcomeMessage: dco_decode_String(arr[1]),
@@ -1181,6 +1181,7 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
       version: dco_decode_String(arr[3]),
       channels: dco_decode_list_bridge_channel(arr[4]),
       clients: dco_decode_list_bridge_client(arr[5]),
+      ownClientId: dco_decode_u_64(arr[6]),
     );
   }
 
@@ -1483,6 +1484,7 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
     var var_version = sse_decode_String(deserializer);
     var var_channels = sse_decode_list_bridge_channel(deserializer);
     var var_clients = sse_decode_list_bridge_client(deserializer);
+    var var_ownClientId = sse_decode_u_64(deserializer);
     return BridgeSnapshot(
       serverName: var_serverName,
       welcomeMessage: var_welcomeMessage,
@@ -1490,6 +1492,7 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
       version: var_version,
       channels: var_channels,
       clients: var_clients,
+      ownClientId: var_ownClientId,
     );
   }
 
@@ -1809,6 +1812,7 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
     sse_encode_String(self.version, serializer);
     sse_encode_list_bridge_channel(self.channels, serializer);
     sse_encode_list_bridge_client(self.clients, serializer);
+    sse_encode_u_64(self.ownClientId, serializer);
   }
 
   @protected

apps/chanora_flutter/lib/widgets/voice_bar.dart

@@ -29,7 +29,6 @@ class VoiceBar extends StatelessWidget {
     required this.onToggleMute,
     required this.onToggleOutputMute,
     required this.onConfigure,
-    required this.onLeave,
   });
 
   /// True when the session is currently joined to a voice channel.
@@ -85,9 +84,6 @@ class VoiceBar extends StatelessWidget {
   /// and intentionally does NOT have its own configure affordance.
   final VoidCallback onConfigure;
 
-  /// Leave the voice channel.
-  final VoidCallback onLeave;
-
   String _modeLabel(AppL10n l10n) {
     switch (transmitMode) {
       case rust.BridgeTransmitMode.ptt:
@@ -236,17 +232,12 @@ class VoiceBar extends StatelessWidget {
                 backendId: pttBackendId,
                 boundInputClass: pttBoundInputClass,
               ),
-            if (inChannel) ...[
-              const SizedBox(height: 6),
-              Align(
-                alignment: AlignmentDirectional.centerEnd,
-                child: TextButton.icon(
-                  icon: const Icon(Icons.call_end),
-                  label: Text(l10n.voiceLeaveAction),
-                  onPressed: onLeave,
-                ),
-              ),
-            ],
+            // Leave-voice button intentionally absent: TeamSpeak's
+            // model is "user is always in some channel", not
+            // Discord's join/leave-voice. To stop being heard /
+            // hearing others, mute mic and/or speaker via the
+            // icons at the top of the bar. To physically move,
+            // tap a different channel in the tree below.
           ],
         ),
       ),