feat(call): implement CallKeep integration and enhance group call support

Integrate `expo-callkit-telecom` to support native system call handling (answering, ending, and muting via system UI). This includes a new `callKeepService` and a `CallKeepBootstrap` component to manage the lifecycle of system call events.

Additionally, improves the calling experience by:
- Adding support for group calls with participant tracking and UI indicators.
- Enhancing LiveKit integration by replacing polling with event-driven video track synchronization.
- Updating `WebSocketService` to prevent disconnection when the app enters the background during an active call.
- Adding new WebSocket message types for participant join/leave events and group invites.
- Refining call UI components (`CallScreen`, `FloatingCallWindow`, `IncomingCallModal`) for better visual feedback and safe area handling.

Refactor LiveKit service to use event-driven updates for local and remote tracks, improving performance and reliability.

src/infrastructure/cache/MediaCacheManager.ts

@@ -154,9 +154,9 @@ export class MediaCacheManager {
       
       if (recordKeys.length === 0) return;
 
-      const records = await AsyncStorage.multiGet(recordKeys);
-      
-      for (const [key, value] of records) {
+      const records = await AsyncStorage.getMany(recordKeys);
+
+      for (const [key, value] of Object.entries(records)) {
         if (value) {
           const entry: CacheEntry = JSON.parse(value);
           // 验证文件是否存在
@@ -614,7 +614,7 @@ export class MediaCacheManager {
     const keys = await AsyncStorage.getAllKeys();
     const recordKeys = keys.filter(k => k.startsWith(CACHE_RECORD_PREFIX));
     if (recordKeys.length > 0) {
-      await AsyncStorage.multiRemove(recordKeys);
+      await AsyncStorage.removeMany(recordKeys);
     }
   }