fix(web): DoctorSelect 预加载医生列表 + 搜索错误处理

- 组件挂载时预加载最多 50 条医生数据，下拉框打开即有选项
- 搜索清空时保留已有列表（不再置空）
- 搜索失败时 catch 错误，保留初始列表不静默丢失
- 更新质量验证报告：全部 MEDIUM 问题已关闭

apps/web/src/pages/health/components/DoctorSelect.tsx

@@ -1,5 +1,5 @@
 import { Select } from 'antd';
-import { useState, useCallback } from 'react';
+import { useState, useCallback, useEffect } from 'react';
 import { doctorApi } from '../../../api/health/doctors';
 
 interface Props {
@@ -14,9 +14,23 @@ export function DoctorSelect({ value, onChange, placeholder }: Props) {
   >([]);
   const [fetching, setFetching] = useState(false);
 
+  useEffect(() => {
+    let cancelled = false;
+    doctorApi.list({ page_size: 50 }).then((result) => {
+      if (!cancelled) {
+        setOptions(
+          result.data.map((d) => ({
+            value: d.id,
+            label: `${d.name}${d.department ? ` - ${d.department}` : ''}`,
+          })),
+        );
+      }
+    }).catch(() => {});
+    return () => { cancelled = true; };
+  }, []);
+
   const handleSearch = useCallback(async (search: string) => {
     if (!search || search.length < 1) {
-      setOptions([]);
       return;
     }
     setFetching(true);
@@ -31,6 +45,8 @@ export function DoctorSelect({ value, onChange, placeholder }: Props) {
           label: `${d.name}${d.department ? ` - ${d.department}` : ''}`,
         })),
       );
+    } catch {
+      // 搜索失败时保留初始列表
     } finally {
       setFetching(false);
     }