添加 backend 微服务架构：Nginx 网关 + user-service 登录注册

backend/services/user-service/docker-compose.yml

@@ -0,0 +1,102 @@
+version: "3.8"
+
+services:
+  user-login:
+    build:
+      context: ../..
+      dockerfile: services/user-service/user-login/Dockerfile
+    container_name: user-login
+    environment:
+      - RUST_LOG=info
+      - DATABASE_URL=postgres://postgres:postgres@user-db:5432/user_db
+      - REDIS_URL=redis://user-redis:6379/0
+      - SERVICE_NAME=user-login
+      - SERVICE_PORT=8080
+      - JWT_SECRET=${JWT_SECRET:-dev-secret-key}
+    ports:
+      - "8001:8080"
+    depends_on:
+      user-db:
+        condition: service_healthy
+      user-redis:
+        condition: service_healthy
+    networks:
+      - user-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  user-register:
+    build:
+      context: ../..
+      dockerfile: services/user-service/user-register/Dockerfile
+    container_name: user-register
+    environment:
+      - RUST_LOG=info
+      - DATABASE_URL=postgres://postgres:postgres@user-db:5432/user_db
+      - REDIS_URL=redis://user-redis:6379/0
+      - SERVICE_NAME=user-register
+      - SERVICE_PORT=8080
+    ports:
+      - "8002:8080"
+    depends_on:
+      user-db:
+        condition: service_healthy
+      user-redis:
+        condition: service_healthy
+    networks:
+      - user-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  user-db:
+    image: postgres:18.3-alpine3.23
+    container_name: user-db
+    environment:
+      - POSTGRES_USER=postgres
+      - POSTGRES_PASSWORD=postgres
+      - POSTGRES_DB=user_db
+    volumes:
+      - user_postgres_data:/var/lib/postgresql/data
+      - ./migrations:/docker-entrypoint-initdb.d:ro
+    ports:
+      - "5432:5432"
+    networks:
+      - user-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres -d user_db"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  user-redis:
+    image: redis:8.6.2-alpine
+    container_name: user-redis
+    volumes:
+      - user_redis_data:/data
+    ports:
+      - "6379:6379"
+    networks:
+      - user-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+networks:
+  user-network:
+    driver: bridge
+
+volumes:
+  user_postgres_data:
+  user_redis_data: