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/api/health/criticalValueThresholds.ts

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+import client from '../client';
+
+// --- Types ---
+
+export interface CriticalValueThreshold {
+  id: string;
+  tenant_id: string;
+  indicator: string;
+  direction: string;
+  threshold_value: number;
+  level: string;
+  department?: string;
+  age_min?: number;
+  age_max?: number;
+  is_active: boolean;
+  created_at: string;
+  updated_at: string;
+  version: number;
+}
+
+export interface CreateThresholdReq {
+  indicator: string;
+  direction: string;
+  threshold_value: number;
+  level?: string;
+  department?: string;
+  age_min?: number;
+  age_max?: number;
+}
+
+export interface UpdateThresholdReq {
+  threshold_value: number;
+  level?: string;
+  department?: string;
+  age_min?: number;
+  age_max?: number;
+  version: number;
+}
+
+// --- Constants ---
+
+export const INDICATOR_OPTIONS = [
+  { label: '收缩压', value: 'systolic_bp' },
+  { label: '舒张压', value: 'diastolic_bp' },
+  { label: '心率', value: 'heart_rate' },
+  { label: '血糖', value: 'blood_sugar' },
+  { label: '空腹血糖', value: 'blood_sugar_fasting' },
+  { label: '餐后血糖', value: 'blood_sugar_postprandial' },
+  { label: '血氧', value: 'blood_oxygen' },
+  { label: '体温', value: 'temperature' },
+];
+
+export const DIRECTION_OPTIONS = [
+  { label: '偏高', value: 'high' },
+  { label: '偏低', value: 'low' },
+];
+
+export const LEVEL_OPTIONS = [
+  { label: '危急', value: 'critical' },
+  { label: '警告', value: 'warning' },
+];
+
+export const LEVEL_COLOR: Record<string, string> = {
+  critical: 'red',
+  warning: 'orange',
+};
+
+export const INDICATOR_LABEL: Record<string, string> = Object.fromEntries(
+  INDICATOR_OPTIONS.map((o) => [o.value, o.label]),
+);
+
+export const DIRECTION_LABEL: Record<string, string> = Object.fromEntries(
+  DIRECTION_OPTIONS.map((o) => [o.value, o.label]),
+);
+
+export const LEVEL_LABEL: Record<string, string> = Object.fromEntries(
+  LEVEL_OPTIONS.map((o) => [o.value, o.label]),
+);
+
+// --- API ---
+
+export const criticalValueThresholdApi = {
+  list: async () => {
+    const { data } = await client.get<{
+      success: boolean;
+      data: CriticalValueThreshold[];
+    }>('/health/critical-value-thresholds');
+    return data.data;
+  },
+
+  create: async (req: CreateThresholdReq) => {
+    const { data } = await client.post<{
+      success: boolean;
+      data: CriticalValueThreshold;
+    }>('/health/critical-value-thresholds', req);
+    return data.data;
+  },
+
+  update: async (id: string, req: UpdateThresholdReq) => {
+    const { data } = await client.put<{
+      success: boolean;
+      data: CriticalValueThreshold;
+    }>(`/health/critical-value-thresholds/${id}`, req);
+    return data.data;
+  },
+
+  delete: async (id: string) => {
+    await client.delete(`/health/critical-value-thresholds/${id}`);
+  },
+};

apps/web/src/api/health/diagnoses.ts

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+import client from '../client';
+import type { PaginatedResponse } from '../types';
+
+// --- Types ---
+
+export interface Diagnosis {
+  id: string;
+  patient_id: string;
+  health_record_id?: string;
+  icd_code: string;
+  diagnosis_name: string;
+  diagnosis_type: string;
+  diagnosed_date: string;
+  status: string;
+  diagnosed_by?: string;
+  notes?: string;
+  created_at: string;
+  updated_at: string;
+  version: number;
+}
+
+export interface CreateDiagnosisReq {
+  icd_code: string;
+  diagnosis_name: string;
+  diagnosis_type?: string;
+  diagnosed_date: string;
+  status?: string;
+  health_record_id?: string;
+  diagnosed_by?: string;
+  notes?: string;
+}
+
+export interface UpdateDiagnosisReq {
+  icd_code?: string;
+  diagnosis_name?: string;
+  diagnosis_type?: string;
+  diagnosed_date?: string;
+  status?: string;
+  health_record_id?: string;
+  diagnosed_by?: string;
+  notes?: string;
+}
+
+// --- Constants ---
+
+export const DIAGNOSIS_TYPE_OPTIONS = [
+  { label: '主要诊断', value: 'primary' },
+  { label: '次要诊断', value: 'secondary' },
+  { label: '合并症', value: 'comorbid' },
+];
+
+export const DIAGNOSIS_STATUS_OPTIONS = [
+  { label: '活跃', value: 'active' },
+  { label: '已缓解', value: 'resolved' },
+  { label: '慢性', value: 'chronic' },
+];
+
+export const DIAGNOSIS_TYPE_COLOR: Record<string, string> = {
+  primary: 'red',
+  secondary: 'blue',
+  comorbid: 'orange',
+};
+
+export const DIAGNOSIS_STATUS_COLOR: Record<string, string> = {
+  active: 'green',
+  resolved: 'default',
+  chronic: 'orange',
+};
+
+export const DIAGNOSIS_TYPE_LABEL: Record<string, string> = Object.fromEntries(
+  DIAGNOSIS_TYPE_OPTIONS.map((o) => [o.value, o.label]),
+);
+
+export const DIAGNOSIS_STATUS_LABEL: Record<string, string> = Object.fromEntries(
+  DIAGNOSIS_STATUS_OPTIONS.map((o) => [o.value, o.label]),
+);
+
+// --- API ---
+
+export const diagnosisApi = {
+  list: async (patientId: string, params?: { page?: number; page_size?: number }) => {
+    const { data } = await client.get<{
+      success: boolean;
+      data: PaginatedResponse<Diagnosis>;
+    }>(`/health/patients/${patientId}/diagnoses`, { params });
+    return data.data;
+  },
+
+  create: async (patientId: string, req: CreateDiagnosisReq) => {
+    const { data } = await client.post<{
+      success: boolean;
+      data: Diagnosis;
+    }>(`/health/patients/${patientId}/diagnoses`, req);
+    return data.data;
+  },
+
+  update: async (diagnosisId: string, req: UpdateDiagnosisReq & { version: number }) => {
+    const { data } = await client.put<{
+      success: boolean;
+      data: Diagnosis;
+    }>(`/health/diagnoses/${diagnosisId}`, req);
+    return data.data;
+  },
+
+  delete: async (diagnosisId: string, version: number) => {
+    await client.delete(`/health/diagnoses/${diagnosisId}`, { data: { version } });
+  },
+};