feat(api): 搭建 API 与 Worker 骨架及契约基线

NestJS 11 + Fastify 统一错误体与 trace_id，/health 真实探活 DB/Redis，OpenAPI 3.1 契约含 20 个错误码；shared 包提供错误码、权限点、ULID、分页与通用 schema；worker 完成队列进程骨架。

packages/render/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "@lingxi/render",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js",
+      "require": "./dist/index.cjs"
+    }
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "tsup src/index.ts --format esm,cjs --dts --clean --sourcemap",
+    "typecheck": "tsc -p tsconfig.json --noEmit"
+  },
+  "devDependencies": {
+    "tsup": "8.5.1",
+    "typescript": "5.9.3"
+  }
+}

packages/render/src/index.ts

@@ -0,0 +1,5 @@
+/**
+ * @lingxi/render 骨架占位：具体能力在后续批次实现（见开发计划 WBS）。
+ * 本包在 A0 阶段仅用于固定仓库结构与依赖方向。
+ */
+export const PACKAGE_NAME = '@lingxi/render';

packages/render/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "noEmit": true,
+    "types": []
+  },
+  "include": ["src"]
+}