infra: Docker Compose 开发环境（PostgreSQL + Redis）

- docker-compose.dev.yml: PostgreSQL 17 + Redis 7 服务编排
- init.sql: auth 模块表结构 + 默认角色 + 超级管理员
- redis.conf: 开发环境 Redis 配置
- dev-setup.sh: 一键启动开发环境脚本
- .gitignore: 项目全局忽略规则

Made-with: Cursor

deploy/docker-compose.dev.yml

@@ -0,0 +1,39 @@
+version: '3.8'
+
+services:
+  postgres:
+    image: postgres:17
+    container_name: echochat-postgres
+    environment:
+      POSTGRES_DB: echochat
+      POSTGRES_USER: echochat
+      POSTGRES_PASSWORD: echochat_dev_2026
+    ports:
+      - "5432:5432"
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+      - ./docker/postgres/init.sql:/docker-entrypoint-initdb.d/init.sql
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U echochat"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    image: redis:7-alpine
+    container_name: echochat-redis
+    ports:
+      - "6379:6379"
+    volumes:
+      - redisdata:/data
+      - ./docker/redis/redis.conf:/usr/local/etc/redis/redis.conf
+    command: redis-server /usr/local/etc/redis/redis.conf
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  pgdata:
+  redisdata: