feat(miniprogram): 行动收件箱 — Service + 医生端列表页 + 半屏弹窗

- action-inbox.ts: listActionItems + getActionThread API 调用
- doctor/action-inbox: 待办列表页，Tab 筛选 + 半屏线程弹窗 + 操作按钮
- app.config.ts: 注册 action-inbox 页面到 doctor 子包

apps/miniprogram/src/services/action-inbox.ts

@@ -0,0 +1,60 @@
+import { api } from './request';
+
+export interface ActionItem {
+  id: string;
+  action_type: string;
+  priority: string;
+  status: string;
+  title: string;
+  summary: string;
+  patient_id: string;
+  patient_name: string;
+  source_ref: string;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface ThreadEvent {
+  step: string;
+  label: string;
+  status: string;
+  detail?: string;
+  timestamp?: string;
+  link_to?: string;
+}
+
+export interface ActionDef {
+  key: string;
+  label: string;
+  variant: string;
+  api_endpoint?: string;
+}
+
+export interface ThreadResponse {
+  action_item: ActionItem;
+  thread: ThreadEvent[];
+  available_actions: ActionDef[];
+}
+
+interface PaginatedData {
+  data: ActionItem[];
+  total: number;
+}
+
+export async function listActionItems(params?: {
+  status?: string;
+  type?: string;
+  page?: number;
+  page_size?: number;
+}) {
+  return api.get<PaginatedData>(
+    '/health/action-inbox',
+    params as Record<string, string | number | undefined>,
+  );
+}
+
+export async function getActionThread(sourceRef: string) {
+  return api.get<ThreadResponse>(
+    `/health/action-inbox/${encodeURIComponent(sourceRef)}/thread`,
+  );
+}