Refactor: Remove original Dart references from comments across multiple files

- Updated comments in various components, schemas, and repositories to remove references to original Dart files.
- Ensured consistency in documentation while maintaining the context of the code.

src/data/repositories/metrics_repository.ts

@@ -4,8 +4,6 @@
  * MetricsRepository
  *
  * 指标/埋点仓库：纯远程 fire-and-forget 上报，无本地状态。
- *
- * 原始 Dart: lib/data/repositories/metrics_repository_impl.dart
  */
 import { MetricsApi, metricsApi } from "@/data/services/api";
 import { AppEvent, PwaEvent } from "@/data/dto/metrics";