Add checkAlarmLink feature to handle alarm links on first access

- Add CHECK_ALARM_LINK to BridgeMessageType enum
- Implement checkAlarmLink method in appBridge class
- Add checkAlarmLink to useAppBridge hook
- Call checkAlarmLink on HomePage when firstAccess is true
- Clean up unused imports and minor code formatting

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/utils/appBridge.ts

@@ -225,6 +225,11 @@ class AppBridge {
     return this.sendMessage(BridgeMessageType.SET_NOTIFICATION_SETTING, { enabled });
   }
 
+  // 알림 링크 확인
+  async checkAlarmLink(): Promise<void> {
+    return this.sendMessage(BridgeMessageType.CHECK_ALARM_LINK);
+  }
+
   // 네이티브 환경 체크
   isNativeEnvironment(): boolean {
     return !!(