Complete Docker compose deployment setup

- Add an API container entrypoint that waits for PostgreSQL, runs Prisma migrations, seeds demo data, and then starts NestJS.

- Keep Prisma CLI and seed dependencies available in the API runtime image and copy seed source dependencies into the container.

- Add Docker Compose healthchecks and health-based startup ordering for PostgreSQL, API, and Nginx web services.

- Add Docker initialization environment switches for migrations, seed, and startup retries.

- Add a dedicated Docker deployment guide covering services, ports, initialization, HTTPS, production variables, backup, restore, and troubleshooting.

- Update README, AGENTS, installation, deployment, progress, and environment example docs for the Dockerized workflow.

AGENTS.md

@@ -123,6 +123,8 @@ npm run test:e2e
 ├── playwright.config.ts      # Playwright E2E 配置，启动/复用 3001 前端和 3100 测试 API
 ├── tsconfig.json             # TypeScript 配置
 ├── index.html                # Vite HTML 入口
+├── scripts/
+│   └── docker-api-entrypoint.sh # API 容器启动时执行迁移、seed 和服务启动
 ├── e2e/
 │   ├── helpers.ts            # E2E 真实 API 登录和造数工具
 │   ├── audit-and-route-guards.spec.ts
@@ -218,6 +220,7 @@ npm run test:e2e
 │   ├── features.md
 │   ├── testing.md
 │   ├── data-storage.md
+│   ├── docker.md
 │   ├── deployment.md
 │   ├── security.md
 │   ├── progress.md
@@ -309,6 +312,8 @@ npm run test:e2e
 
 API 默认 JSON/urlencoded 请求体上限为 `100mb`，由 `API_BODY_LIMIT` 控制；Nginx 同步配置了 `client_max_body_size 100m`，用于承载迁移期报告 HTML、图片/关键帧和通用文件 Data URL 上传。
 
+Docker API 容器通过 `scripts/docker-api-entrypoint.sh` 启动，默认先执行 `prisma migrate deploy` 和 `prisma db seed`，再启动 NestJS。可用 `RUN_DB_MIGRATIONS=false`、`RUN_DB_SEED=false` 关闭自动初始化；完整说明见 `docs/docker.md`。
+
 Docker 前端默认暴露 `http://localhost:4002`，并额外暴露自签名 HTTPS 演示入口 `https://localhost:4443`。浏览器麦克风 API 不能在普通局域网 HTTP 页面中由应用代码强行开启；语音听写演示优先使用 HTTPS 入口，或用 Chrome/Edge 的 `--unsafely-treat-insecure-origin-as-secure` 临时标记 HTTP 来源。
 
 ### `server/prisma/schema.prisma`