补充 release SpacetimeDB 健康检查与巡检防回退

增加 SpacetimeDB 阶段化健康检查与 /readyz 阶段输出
记录 procedure/reducer/read 失败的阶段和耗时
补充 release 健康巡检 systemd timer 与生产 ops 预检
同步 API 构建部署、provision 脚本和运维文档

package.json

@@ -27,6 +27,7 @@
     "clean": "node -e \"require('fs').rmSync('dist', { recursive: true, force: true })\"",
     "check:encoding": "node scripts/check-encoding.mjs",
     "check:spacetime-schema": "node scripts/check-spacetime-schema-guard.mjs",
+    "check:production-ops": "node scripts/check-production-ops-guardrails.mjs",
     "assets:child-motion-demo": "node scripts/generate-child-motion-demo-assets.mjs",
     "assets:match3d-style-references": "node scripts/generate-match3d-style-references.mjs",
     "check:visual-novel-vn11": "node scripts/check-visual-novel-vn11-negative-scan.mjs",
@@ -37,7 +38,7 @@
     "lint:guardrails": "npm run lint:eslint",
     "typecheck": "tsc -p tsconfig.typecheck-guardrails.json --noEmit",
     "typecheck:guardrails": "npm run typecheck",
-    "lint": "npm run check:encoding && npm run check:spacetime-schema && npm run lint:eslint && npm run typecheck",
+    "lint": "npm run check:encoding && npm run check:spacetime-schema && npm run check:production-ops && npm run lint:eslint && npm run typecheck",
     "lint:fix": "eslint . --ext .ts,.tsx,.js,.mjs,.cjs --fix && prettier --write .",
     "format": "prettier --write .",
     "format:check": "prettier --check .",