Initial commit: 91dj android client dev_1.0.0

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

analytics_sdk/lib/manager/event_persistence.dart

@@ -0,0 +1,7 @@
+export 'event_persistence_native.dart'
+    // ignore: uri_does_not_exist
+    if (dart.library.html) 'event_persistence_web.dart';
+
+// EventPersistenceImpl 由条件导入文件提供
+// Native：lib/manager/event_persistence_native.dart
+// Web   ：lib/manager/event_persistence_web.dart