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/app.config.ts

@@ -27,6 +27,7 @@ export default defineAppConfig({
         'followup/index', 'followup/detail/index',
         'report/index', 'report/detail/index',
         'alerts/index', 'alerts/detail/index',
+        'action-inbox/index',
         'dialysis/index', 'dialysis/detail/index', 'dialysis/create/index',
         'prescription/index', 'prescription/detail/index', 'prescription/create/index',
       ],