fix: Bug - Voice states doesn't get cleared for all users on leave

Broadcast a cleared voice_state when voice-active sockets drop and reset mute/deafen flags on disconnect or reconnect so stale session state cannot leak to other clients.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/src/websocket/index.ts

@@ -11,7 +11,7 @@ import {
   getServerIdsForOderId,
   isOderIdConnectedToServer
 } from './broadcast';
-import { handleWebSocketMessage } from './handler';
+import { handleWebSocketMessage, finalizeVoiceDisconnectForConnection } from './handler';
 
 type IncomingWebSocketMessage = Parameters<typeof handleWebSocketMessage>[1];
 
@@ -26,6 +26,8 @@ function removeDeadConnection(connectionId: string): void {
   if (user) {
     console.log(`Removing dead connection: ${user.displayName ?? 'Unknown'} (${user.oderId})`);
 
+    finalizeVoiceDisconnectForConnection(connectionId);
+
     const remainingServerIds = getServerIdsForOderId(user.oderId, connectionId);
 
     user.serverIds.forEach((sid) => {