refactor: replace JSON deep copy with deepClone helper and extract useTauriEvent hook (#3140)

* refactor: replace JSON.parse(JSON.stringify()) with structuredClone and extract useTauriEvent hook

Replace all `JSON.parse(JSON.stringify())` deep copy patterns with native
`structuredClone()` across production source (9 occurrences), tests (11
occurrences), and a hand-rolled `deepClone` utility in providerConfigUtils.ts.
Add "ES2022" to tsconfig lib for type support.

Extract a `useTauriEvent` hook to eliminate the repeated Tauri event listener
boilerplate (`useEffect` + `active/disposed` flag + async `listen`) that was
duplicated across App.tsx (3 listeners) and useUsageCacheBridge.ts. The hook
handles async registration, race-condition guards, and cleanup automatically.

* fix: add compatible deepClone helper

- Add a shared deepClone helper with a structuredClone runtime guard and fallback.
- Route clone call sites through the helper.
- Preserve universal-provider-synced listener ordering and drop the dead-directory diff.

* fix: harden Tauri event handling

- Guard WebDAV sync status events against missing payloads.
- Preserve settings query invalidation ordering before showing auto-sync errors.
- Simplify useTauriEvent subscriptions to avoid dependency-driven re-listens.

---------

Co-authored-by: zcb <zhangchongbiao@qiyuanlab.com>
Co-authored-by: Jason <farion1231@gmail.com>

src/hooks/useTauriEvent.ts

@@ -0,0 +1,39 @@
+import { useEffect, useRef } from "react";
+import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+
+/**
+ * 在 useEffect 中监听 Tauri 事件，自动管理异步注册和卸载清理。
+ * 避免每次使用时重复编写 active flag + async setup 样板代码。
+ */
+export function useTauriEvent<P>(
+  eventName: string,
+  handler: (payload: P) => void | Promise<void>,
+): void {
+  const handlerRef = useRef(handler);
+  handlerRef.current = handler;
+
+  useEffect(() => {
+    let disposed = false;
+    let unlisten: UnlistenFn | undefined;
+
+    void (async () => {
+      try {
+        const off = await listen<P>(eventName, (event) => {
+          void handlerRef.current(event.payload);
+        });
+        if (disposed) {
+          off();
+        } else {
+          unlisten = off;
+        }
+      } catch (error) {
+        console.error(`Failed to subscribe ${eventName} event`, error);
+      }
+    })();
+
+    return () => {
+      disposed = true;
+      unlisten?.();
+    };
+  }, [eventName]);
+}