feat(ops): 添加发布 smoke test

- 新增只读发布 smoke runner 和 dry-run 测试\n- 将生产部署 workflow 从单点版本检查升级为 smoke test\n- 补充 Docker web runtime 脚本复制、package script 和部署文档\n\nCo-Authored-By: GPT-5 Codex <codex@openai.com>

package.json

@@ -10,6 +10,7 @@
     "ops:test": "node --test scripts/*.test.mjs",
     "deploy:verify": "node scripts/verify-production-deploy.mjs",
     "deploy:check-runtime": "node scripts/check-runtime-version.mjs",
+    "deploy:smoke": "node scripts/smoke-test-release.mjs",
     "backup:postgres": "node scripts/backup-postgres.mjs",
     "restore:postgres": "node scripts/restore-postgres.mjs",
     "backup:server-data": "node scripts/backup-server-data.mjs",