task-23(会话/菜单/权限): 实现当前用户请求适配 + 真后端 live 测试

session-model.parseCurrentUser 兼容 data:{item}/{item}/直接对象信封并校验 id；
session.ts fetchCurrentUser 复用；启用 allowImportingTsExtensions；npm run test:live
用 admin 账号真实登录打 18080 验证 current-user 与菜单树(023/024 live 全绿)。

admin-frontend-vue/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "noEmit": true,
+    "allowImportingTsExtensions": true,
+    "strict": true,
+    "jsx": "preserve",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "esModuleInterop": true,
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "skipLibCheck": true,
+    "baseUrl": ".",
+    "paths": { "@/*": ["src/*"] }
+  },
+  "include": ["src/**/*.ts", "src/**/*.d.ts", "src/**/*.vue", "vite.config.ts"]
+}