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>

tests/integration/App.test.tsx

@@ -230,6 +230,11 @@ describe("App integration with MSW", () => {
       ),
     );
 
+    expect(() => {
+      emitTauriEvent("webdav-sync-status-updated", null);
+    }).not.toThrow();
+    expect(toastErrorMock).not.toHaveBeenCalled();
+
     emitTauriEvent("webdav-sync-status-updated", {
       source: "auto",
       status: "error",