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/utils/providerConfigUtils.ts

@@ -1,6 +1,7 @@
 // 供应商配置处理工具函数
 
 import type { TemplateValueConfig } from "../config/claudeProviderPresets";
+import { deepClone } from "@/utils/deepClone";
 import { normalizeTomlText } from "@/utils/textNormalization";
 import { parse as parseToml, stringify as stringifyToml } from "smol-toml";
 
@@ -62,23 +63,6 @@ const isSubset = (target: any, source: any): boolean => {
   return target === source;
 };
 
-// 深拷贝函数
-const deepClone = <T>(obj: T): T => {
-  if (obj === null || typeof obj !== "object") return obj;
-  if (obj instanceof Date) return new Date(obj.getTime()) as T;
-  if (obj instanceof Array) return obj.map((item) => deepClone(item)) as T;
-  if (obj instanceof Object) {
-    const clonedObj = {} as T;
-    for (const key in obj) {
-      if (obj.hasOwnProperty(key)) {
-        clonedObj[key] = deepClone(obj[key]);
-      }
-    }
-    return clonedObj;
-  }
-  return obj;
-};
-
 export interface UpdateCommonConfigResult {
   updatedConfig: string;
   error?: string;