fix: e2e 类型声明 + ESLint 覆盖 e2e + backup 路径校验 + DX 脚本

- e2e/global.d.ts: Window.__TAURI_INTERNALS__ 类型声明
- e2e search-clean: 未使用参数 _args 前缀
- tsconfig.test.json: include e2e/
- CI: ESLint 扫描范围扩展到 e2e/
- backup_registry: 拒绝写入系统目录 (C:\Windows\, C:\Program Files\)
- package.json: 新增 lint:fix / format 脚本

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tsconfig.test.json

@@ -4,5 +4,5 @@
     "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.test.tsbuildinfo",
     "types": ["vite/client", "vitest/globals"]
   },
-  "include": ["src", "tests"]
+  "include": ["src", "tests", "e2e"]
 }