feat(web): 危急值阈值 + 诊断记录 Web UI — Phase 2b-2/2b-3

危急值阈值：CRUD 列表页（指标/方向/阈值/级别/科室/年龄范围）
诊断记录：患者范围 CRUD 列表页（ICD编码/类型/状态/确诊日期）

apps/web/src/App.tsx

@@ -60,6 +60,8 @@ const ShiftDetail = lazy(() => import('./pages/health/ShiftDetail'));
 const MedicationRecordList = lazy(() => import('./pages/health/MedicationRecordList'));
 const BleGatewayList = lazy(() => import('./pages/health/BleGatewayList'));
 const BleGatewayDetail = lazy(() => import('./pages/health/BleGatewayDetail'));
+const CriticalValueThresholdList = lazy(() => import('./pages/health/CriticalValueThresholdList'));
+const DiagnosisList = lazy(() => import('./pages/health/DiagnosisList'));
 
 // 内容管理
 const ArticleManageList = lazy(() => import('./pages/health/ArticleManageList'));
@@ -285,6 +287,8 @@ export default function App() {
                       <Route path="/health/medications" element={<MedicationRecordList />} />
                       <Route path="/health/ble-gateways" element={<BleGatewayList />} />
                       <Route path="/health/ble-gateways/:id" element={<BleGatewayDetail />} />
+                      <Route path="/health/critical-value-thresholds" element={<CriticalValueThresholdList />} />
+                      <Route path="/health/diagnoses" element={<DiagnosisList />} />
                       {/* 内容管理 */}
                       <Route path="/health/articles" element={<ArticleManageList />} />
                       <Route path="/health/articles/new" element={<ArticleEditor />} />