feat: 初始化ERP平台底座项目结构

- 添加基础crate结构(erp-core, erp-common)
- 实现核心模块trait和事件总线
- 配置Docker开发环境(PostgreSQL+Redis)
- 添加Tauri桌面端基础框架
- 设置CI/CD工作流
- 编写项目协作规范文档(CLAUDE.md)

docker/.env.example

@@ -0,0 +1,5 @@
+POSTGRES_USER=erp
+POSTGRES_PASSWORD=erp_dev_2024
+POSTGRES_DB=erp
+POSTGRES_PORT=5432
+REDIS_PORT=6379

docker/docker-compose.yml

@@ -0,0 +1,36 @@
+version: "3.8"
+
+services:
+  postgres:
+    image: postgres:16-alpine
+    container_name: erp-postgres
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:-erp}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-erp_dev_2024}
+      POSTGRES_DB: ${POSTGRES_DB:-erp}
+    ports:
+      - "${POSTGRES_PORT:-5432}:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-erp}"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    image: redis:7-alpine
+    container_name: erp-redis
+    ports:
+      - "${REDIS_PORT:-6379}:6379"
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  postgres_data:
+  redis_data: