chore: 工程底座（Vite + Vue 3 + TS + TDesign + vue-query + Pinia + VueUse + Vitest）

vite dev server 代理 /api、/v1 到 GATEWAY（仅从环境变量读取，.env.example 提供示例，代码不写死默认值，dev 未配置时报错）；oxlint + eslint + prettier；vitest 含 jsdom 组件测试环境。

tsconfig.app.json

@@ -0,0 +1,18 @@
+{
+  "extends": "@vue/tsconfig/tsconfig.dom.json",
+  "include": ["env.d.ts", "src/**/*", "src/**/*.vue"],
+  "exclude": ["src/**/__tests__/*"],
+  "compilerOptions": {
+    // Extra safety for array and object lookups, but may have false positives.
+    "noUncheckedIndexedAccess": true,
+
+    // Path mapping for cleaner imports.
+    "paths": {
+      "@/*": ["./src/*"]
+    },
+
+    // `vue-tsc --build` produces a .tsbuildinfo file for incremental type-checking.
+    // Specified here to keep it out of the root directory.
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo"
+  }
+}