feat: 定义数据库 Schema

- 用户表 (users)
- 内容表 (content)
- 版本历史表 (content_versions)
- 站点配置表 (site_config)
- 操作日志表 (audit_logs)

package.json

@@ -17,7 +17,12 @@
     "audit:accessibility": "node scripts/accessibility-test.js",
     "audit:forms": "node scripts/form-validation.js",
     "audit:all": "./scripts/run-all-tests.sh",
-    "report:generate": "node scripts/generate-test-report.js"
+    "report:generate": "node scripts/generate-test-report.js",
+    "db:generate": "drizzle-kit generate",
+    "db:migrate": "drizzle-kit migrate",
+    "db:push": "drizzle-kit push",
+    "db:studio": "drizzle-kit studio",
+    "db:seed": "tsx src/db/seed.ts"
   },
   "dependencies": {
     "@antv/g2": "^5.4.8",