chore(barrels): regenerate barrel files via barrelsby

- Fix chat components barrel to properly export all component modules
- Remove interceptor exports from API services barrel
- Regenerate store barrel files (auth, chat, sidebar, user) using barrelsby

src/stores/auth/index.ts

@@ -1,10 +1,5 @@
 /**
- * Auth 状态机公共导出（barrel）
- *
- * 重新导出 Auth store 的所有公共 API（state / events / machine / React Provider）。
+ * @file Automatically generated by barrelsby.
  */
 
-export * from "./auth-state";
-export * from "./auth-context";
-export * from "./auth-events";
-export * from "./auth-machine";
+export * from "./index";