feat(mp): 小程序功能完善 — 服务层扩展 + 页面优化

- 新增 actionInbox 服务层（待办事项列表/线程查询）
- consultation 服务扩展（会话详情/发送消息）
- 多页面代码优化（profile/messages/health/article）
- 新增 navigate 工具函数

apps/miniprogram/src/services/consultation.ts

@@ -1,4 +1,4 @@
-import { api } from './request';
+import { api, requestWithTimeout } from './request';
 
 export interface ConsultationSession {
   id: string;
@@ -60,3 +60,12 @@ export async function sendMessage(sessionId: string, content: string, contentTyp
 export async function markSessionRead(sessionId: string) {
   return api.put<void>(`/health/consultation-sessions/${sessionId}/read`);
 }
+
+export async function pollMessages(sessionId: string, afterId?: string) {
+  const params = new URLSearchParams();
+  if (afterId) params.set('after_id', afterId);
+  params.set('timeout', '25');
+  const query = params.toString();
+  const path = `/health/consultation-sessions/${sessionId}/messages/poll${query ? '?' + query : ''}`;
+  return requestWithTimeout<ConsultationMessage[]>('GET', path, undefined, 30000);
+}