feat(server): 试运行部署与运营基线（E13/E14/E17/E19/E20/E21）

- 增加 deploy/trialrun：Docker Compose + env 模板 + runbook + 发布/回滚 checklist

- 新增 DB/文件存储备份恢复脚本（backup/restore）

- 新增 system.users 运营接口：创建/启用禁用/重置密码/分配角色 + 审计

- 新增 seed:trialrun 引导管理员账号（一次性口令）

- 补齐 SIGTERM/SIGINT 优雅停机（关闭 job/HTTP/DB）

deploy/trialrun/Dockerfile

@@ -0,0 +1,24 @@
+FROM node:20-alpine AS base
+
+WORKDIR /app
+
+FROM base AS client_deps
+COPY client/package.json client/package-lock.json ./client/
+RUN cd client && npm ci
+
+FROM client_deps AS client_build
+COPY client ./client
+RUN cd client && npm run build
+
+FROM base AS server_deps
+COPY server/package.json server/package-lock.json ./server/
+COPY server/prisma ./server/prisma
+RUN cd server && npm ci
+
+FROM server_deps AS server_build
+COPY server ./server
+COPY --from=client_build /app/client/dist ./client/dist
+
+WORKDIR /app/server
+ENV NODE_ENV=production
+CMD ["npm", "start"]