feat(dialysis): 激活 erp-dialysis 独立模块 — 注册到 erp-server

- workspace Cargo.toml 添加 erp-dialysis 依赖声明
- erp-server 注册 DialysisModule 并挂载透析路由
- 修复权限码：health.health-data.* → health.dialysis.list/manage
- 集成测试迁移：erp_health → erp_dialysis import + DialysisState
- TestApp 新增 dialysis_state() 方法
- cargo check 通过，erp-dialysis 10 个单元测试全部通过

crates/erp-dialysis/src/module.rs

@@ -78,13 +78,13 @@ impl ErpModule for DialysisModule {
     fn permissions(&self) -> Vec<PermissionDescriptor> {
         vec![
             PermissionDescriptor {
-                code: "health.health-data.list".into(),
+                code: "health.dialysis.list".into(),
                 name: "查看透析记录".into(),
                 description: "查看透析记录列表和详情".into(),
                 module: "erp-dialysis".into(),
             },
             PermissionDescriptor {
-                code: "health.health-data.manage".into(),
+                code: "health.dialysis.manage".into(),
                 name: "管理透析记录".into(),
                 description: "创建、编辑、审阅、删除透析记录".into(),
                 module: "erp-dialysis".into(),