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-server/src/state.rs

@@ -132,3 +132,14 @@ impl FromRef<AppState> for erp_points::PointsState {
         }
     }
 }
+
+/// Allow erp-dialysis handlers to extract their required state.
+impl FromRef<AppState> for erp_dialysis::DialysisState {
+    fn from_ref(state: &AppState) -> Self {
+        Self {
+            db: state.db.clone(),
+            event_bus: state.event_bus.clone(),
+            crypto: state.pii_crypto.clone(),
+        }
+    }
+}