feat(api): NestJS standalone 骨架 + Drizzle/postgres.js 接入

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

apps/api/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "@sf/api",
+  "version": "0.1.0",
+  "description": "SiteForge API：NestJS 模块化单体骨架（本切片以 standalone context 供 CLI 使用，不监听端口）+ Drizzle/postgres.js 接入",
+  "type": "module",
+  "scripts": {
+    "build": "tsc -p tsconfig.json",
+    "db:generate": "drizzle-kit generate",
+    "db:migrate": "drizzle-kit migrate"
+  },
+  "dependencies": {
+    "@nestjs/common": "^10.4.22",
+    "@nestjs/core": "^10.4.22",
+    "drizzle-orm": "^0.45.4",
+    "postgres": "^3.4.9",
+    "reflect-metadata": "^0.2.2",
+    "rxjs": "^7.8.1"
+  },
+  "devDependencies": {
+    "@types/node": "^26.6.5",
+    "dotenv": "^18.0.8",
+    "drizzle-kit": "^0.31.11",
+    "typescript": "^5.6.0"
+  }
+}