feat: 双Token认证(Access 2h/Refresh 7d) + 通知系统(转交/驳回自动推送)

backend/app/schemas/task.py

@@ -110,6 +110,7 @@ class TaskSummaryResponse(BaseModel):
     status: str
     notify_parent_on_complete: bool
     is_rework: bool = False
+    task_type: str | None = None
     remark: str | None = None
     reject_reason: str | None = None
     received_at: datetime | None = None