feat: 重构 Docker 配置结构，添加 compute 模块及新增文档

- 将 Dockerfile 和 docker-compose.yml 迁移至 docker/ 目录下统一管理
- 新增 compute 计算模块（API 入口、依赖配置）
- 新增 docker/app 和 docker/compute 部署配置
- 新增 demo-development-plan.md 演示开发计划文档
- 更新后端 API 设计、部署计划、架构需求等文档
- 更新 postgres 数据库 schema

Co-Authored-By: Claude <noreply@anthropic.com>

docker/app/docker-compose.yml

@@ -0,0 +1,122 @@
+services:
+  frontend-builder:
+    image: node:20-alpine
+    profiles:
+      - build
+    working_dir: /workspace
+    volumes:
+      - ../../frontend:/workspace
+      - frontend_node_modules:/workspace/node_modules
+    command: sh -c "npm ci && npm run build"
+
+  frontend:
+    build:
+      context: ../..
+      dockerfile: docker/app/Dockerfile.frontend
+    image: yg-ft-frontend-runtime:latest
+    container_name: yg-ft-frontend
+    depends_on:
+      backend-api:
+        condition: service_started
+    ports:
+      - "6801:80"
+    environment:
+      API_PROXY_PASS: ${API_PROXY_PASS:-http://backend-api:8000}
+    volumes:
+      - ../../frontend/dist:/usr/share/nginx/html:ro
+      - ../nginx.conf.template:/etc/nginx/templates/default.conf.template:ro
+    networks:
+      - yg-ft-app
+    restart: unless-stopped
+
+  backend-api:
+    build:
+      context: ../..
+      dockerfile: docker/app/Dockerfile.backend
+    image: yg-ft-backend-api:latest
+    container_name: yg-ft-backend-api
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    expose:
+      - "8000"
+    environment:
+      APP_ENV: ${APP_ENV:-prod}
+      APP_NAME: ${APP_NAME:-YG Fine-Tune Platform API}
+      API_PREFIX: ${API_PREFIX:-/api}
+      DATABASE_URL: ${DATABASE_URL:-postgresql+asyncpg://yg_ft:change_me@postgres:5432/yg_ft}
+      REDIS_URL: ${REDIS_URL:-redis://redis:6379/0}
+      USE_BUILTIN_POSTGRES: ${USE_BUILTIN_POSTGRES:-true}
+      USE_BUILTIN_REDIS: ${USE_BUILTIN_REDIS:-true}
+      LOG_LEVEL: ${LOG_LEVEL:-INFO}
+      LOG_DIR: ${LOG_DIR:-/opt/yg-ft/logs/backend}
+      LOG_FILE_PREFIX: ${LOG_FILE_PREFIX:-backend}
+      LOG_ERROR_FILE_PREFIX: ${LOG_ERROR_FILE_PREFIX:-error}
+      LOG_MAX_BYTES: ${LOG_MAX_BYTES:-20971520}
+      LOG_RETENTION_DAYS: ${LOG_RETENTION_DAYS:-10}
+      COMPUTE_API_BASE_URL: ${COMPUTE_API_BASE_URL:-http://compute-api:9100}
+      COMPUTE_SERVICE_TOKEN: ${COMPUTE_SERVICE_TOKEN:-change_me}
+      FILE_GATEWAY_BASE_URL: ${FILE_GATEWAY_BASE_URL:-http://compute-api:9101}
+      COMPUTE_STATUS_SYNC_MODE: ${COMPUTE_STATUS_SYNC_MODE:-polling}
+      COMPUTE_POLL_INTERVAL_SECONDS: ${COMPUTE_POLL_INTERVAL_SECONDS:-10}
+      COMPUTE_POLL_BATCH_SIZE: ${COMPUTE_POLL_BATCH_SIZE:-100}
+      PYTHONPATH: /app
+    volumes:
+      - ../../backend:/app:ro
+      - ../../runtime/app/logs/backend:/opt/yg-ft/logs/backend
+      - ../../runtime/app/data:/data/yg-ft
+    networks:
+      - yg-ft-app
+    healthcheck:
+      test: ["CMD-SHELL", "python -c \"import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/api/v1/health', timeout=3).read()\""]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 20s
+    restart: unless-stopped
+
+  postgres:
+    image: postgres:16-alpine
+    container_name: yg-ft-postgres
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB:-yg_ft}
+      POSTGRES_USER: ${POSTGRES_USER:-yg_ft}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-change_me}
+      PGDATA: /var/lib/postgresql/data/pgdata
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ../../docs/postgres-schema.sql:/docker-entrypoint-initdb.d/001-schema.sql:ro
+    networks:
+      - yg-ft-app
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    restart: unless-stopped
+
+  redis:
+    image: redis:7-alpine
+    container_name: yg-ft-redis
+    command: ["redis-server", "--appendonly", "yes"]
+    volumes:
+      - redis_data:/data
+    networks:
+      - yg-ft-app
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 5
+    restart: unless-stopped
+
+networks:
+  yg-ft-app:
+    name: yg-ft-app
+
+volumes:
+  frontend_node_modules:
+  postgres_data:
+  redis_data: