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)

crates/erp-server/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "erp-server"
+version.workspace = true
+edition.workspace = true
+
+[[bin]]
+name = "erp-server"
+path = "src/main.rs"
+
+[dependencies]
+erp-core.workspace = true
+erp-common.workspace = true
+tokio.workspace = true
+axum.workspace = true
+tower.workspace = true
+tower-http.workspace = true
+tracing.workspace = true
+tracing-subscriber.workspace = true
+config.workspace = true
+sea-orm.workspace = true
+redis.workspace = true
+utoipa.workspace = true
+utoipa-swagger-ui.workspace = true
+serde_json.workspace = true
+serde.workspace = true