feat(ops): 添加生产备份恢复脚本

- 新增 PostgreSQL 备份、fresh DB 恢复和 server_data volume 备份脚本\n- 恢复默认拒绝覆盖，必须显式 --confirm-overwrite\n- 补充 package scripts、deploy verify 校验和部署文档\n\nCo-Authored-By: GPT-5 Codex <codex@openai.com>

package.json

@@ -7,8 +7,12 @@
     "lint": "turbo lint",
     "type-check": "turbo type-check",
     "test": "turbo test",
+    "ops:test": "node --test scripts/*.test.mjs",
     "deploy:verify": "node scripts/verify-production-deploy.mjs",
     "deploy:check-runtime": "node scripts/check-runtime-version.mjs",
+    "backup:postgres": "node scripts/backup-postgres.mjs",
+    "restore:postgres": "node scripts/restore-postgres.mjs",
+    "backup:server-data": "node scripts/backup-server-data.mjs",
     "deploy:local:build": "docker compose --env-file .env.local-server -f docker-compose.local.yml build",
     "deploy:local:up": "docker compose --env-file .env.local-server -f docker-compose.local.yml up -d",
     "deploy:local:down": "docker compose --env-file .env.local-server -f docker-compose.local.yml down",