fix: reset hwOverdrive in all voice cleanup paths

Add hwOverdrive: false to resetSession(), leaveVoice(), and
handleForceDisconnect() store resets. Add deactivateHwOverdrive()
to disconnect callback and cleanup effect in useLiveKit.
Ensures "resets when stream ends" contract holds for edge cases
like server shutdown, identity collision, and logout.

packages/web/src/hooks/useLiveKit.ts

@@ -30,6 +30,7 @@ import {
   resolveNativeOverdrive,
 } from '../utils/screenShare';
 import { getMediaStreamTrack } from '../utils/livekitInternals';
+import { deactivate as deactivateHwOverdrive } from '../utils/hwOverdrive';
 
 let _activeRoom: Room | null = null;
 let _publishedScreenShareCodec: 'vp9' | 'h264' | null = null;
@@ -560,6 +561,7 @@ export function useLiveKit() {
   const disconnect = useCallback(async () => {
     _connectGeneration++;
     SpeakingDetector.getInstance().clear();
+    deactivateHwOverdrive();
     connectedChannelRef.current = null;
     setConnectedChannelId(null);
     if (roomRef.current) {
@@ -650,7 +652,7 @@ export function useLiveKit() {
   }, [room, screenShareConfig, isScreenSharing, isCameraOn, hwOverdrive]);
 
   useEffect(() => {
-    return () => { _connectGeneration++; SpeakingDetector.getInstance().clear(); if (roomRef.current) { destroyRoom(roomRef.current); roomRef.current = null; _activeRoom = null; } };
+    return () => { _connectGeneration++; SpeakingDetector.getInstance().clear(); deactivateHwOverdrive(); if (roomRef.current) { destroyRoom(roomRef.current); roomRef.current = null; _activeRoom = null; } };
   }, []);
 
 

packages/web/src/stores/voiceStore.ts

@@ -401,6 +401,7 @@ export const useVoiceStore = create<VoiceState>()(
 
       resetSession: () => set({
         // Connection state
+        hwOverdrive: false,
         voiceUsers: new Map(),
         voiceUserStates: new Map(),
         currentVoiceChannelId: null,
@@ -459,6 +460,7 @@ export const useVoiceStore = create<VoiceState>()(
 
           return {
             currentVoiceChannelId: null,
+            hwOverdrive: false,
             isCameraOn: false,
             isScreenSharing: false,
             participants: [],
@@ -493,6 +495,7 @@ export const useVoiceStore = create<VoiceState>()(
       handleForceDisconnect: () => {
         set({
           currentVoiceChannelId: null,
+          hwOverdrive: false,
           isCameraOn: false,
           isScreenSharing: false,
           participants: [],