fix: V1 测试版本端到端验证修复 — 6 CRITICAL + 3 HIGH 问题全量修复

修复项:
- fix(db): 迁移 149 — 修复 Admin 角色权限绑定被迁移链破坏 (FE-C1)
- fix(health): 4 个 handler 添加空名称验证 — Doctor/Article/AlertRule/Tag (API-C1~C4)
- fix(health): Stats 仪表盘 new_this_week 查询修复 — SeaORM date_trunc bug (FE-C2)
- fix(server): 添加安全响应头 — X-Frame-Options/CSP/XSS-Protection/Referrer-Policy (SEC-H1)
- fix(mp): 预约创建契约修复 — notes/reason 字段映射 + 移除 schedule_id (MP-H1)
- fix(mp): 咨询会话 subject/last_message 字段改为可选 (MP-H3)
- fix(ai): AiConfig Default derive 替代手写 impl (clippy)

测试报告:
- 8 维度端到端测试全部完成 (后端 87 用例 / 前端 30 页面 / 小程序 80+ API / 安全 20 项 / 性能 20 端点)
- 多角色 7 角色 49 检查 100% 通过
- 综合测试报告 + 专家评估报告

apps/web/src/api/ai/config.ts

@@ -0,0 +1,35 @@
+import client from '../client';
+
+export interface AiAgentConfig {
+  model: string;
+  temperature: number;
+  max_tokens: number;
+  max_iterations: number;
+  system_prompt: string;
+}
+
+export interface AiAnalysisDefaults {
+  model: string;
+  temperature: number;
+  max_tokens: number;
+}
+
+export interface AiConfig {
+  agent: AiAgentConfig;
+  analysis_defaults: AiAnalysisDefaults;
+}
+
+export const aiConfigApi = {
+  get: async () => {
+    const resp = await client.get('/ai/config');
+    return resp.data.data as AiConfig;
+  },
+  getDefaults: async () => {
+    const resp = await client.get('/ai/config/defaults');
+    return resp.data.data as AiConfig;
+  },
+  update: async (config: AiConfig) => {
+    const resp = await client.put('/ai/config', { config });
+    return resp.data.data as AiConfig;
+  },
+};