feat(a0): 完成工程骨架与契约基线

- 建立 pnpm workspace + Turborepo 单仓、ESLint 9/Prettier/commitlint/husky 门禁
- NestJS + Fastify API：统一错误体、trace_id、Zod 管道、/health 真实依赖探活、OpenAPI 3.1 契约
- Prisma 基线：outbox_events/idempotency_keys/system_configs 与首版迁移、幂等种子
- shared 契约包：错误码、权限点、ULID、游标分页、命名/时间工具
- ui 包与 Web 壳层：Semi + Remix 图标统一出口、Cloud Blue 视觉、登录/工作台/错误页
- worker 骨架、Playwright 冒烟、Gitea CI、OpenAPI 快照与 oasdiff 回退脚本
- 补充 A0 实施报告与本地开发说明

apps/web/vitest.config.ts

@@ -0,0 +1,29 @@
+import { fileURLToPath, URL } from 'node:url';
+
+import react from '@vitejs/plugin-react';
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: {
+      '@': fileURLToPath(new URL('./src', import.meta.url)),
+    },
+  },
+  test: {
+    environment: 'jsdom',
+    include: ['src/**/*.spec.{ts,tsx}'],
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'lcov', 'json-summary'],
+      include: ['src/api/**/*.ts', 'src/stores/**/*.ts', 'src/navigation/**/*.ts'],
+      exclude: ['src/api/generated/**', 'src/**/*.spec.{ts,tsx}'],
+      thresholds: {
+        lines: 70,
+        functions: 70,
+        statements: 70,
+        branches: 60,
+      },
+    },
+  },
+});