重构采购申请任务化页面（purchase-request-task-layout）

.trellis/tasks/05-30-purchase-request-task-layout/task.json

@@ -3,7 +3,7 @@
   "name": "purchase-request-task-layout",
   "title": "采购申请任务化页面重构",
   "description": "按全页面设计规则重构采购申请页：任务卡、状态/证据/动作顺序、跨模块摘要跳转和审批动作归位。",
-  "status": "planning",
+  "status": "in_progress",
   "dev_type": null,
   "scope": "frontend-page-redesign",
   "package": null,