fix: 修复任务删除接口 405（缺失 @app.delete 装饰器）

- api_delete_task 缺少 @app.delete("/api/tasks/{task_id}") 装饰器，
  导致 DELETE 路由从未注册，调用返回 405 Method Not Allowed，
  前端回退显示「删除失败」
- 补回装饰器，删除任务（含 24h 冷却、暂停校验等既有限制）恢复正常

diff --git a/backend/app.py b/backend/app.py
index 0a86c392644fb5ced70203feef207aea06771798..c4325f2509f010469102325d97b9963cc1690df3 100644 (file)
--- a/backend/app.py
+++ b/backend/app.py
@@ -917,6 +917,7 @@ async def api_delete_url(url_id: str, request: Request):
 
 
 
+@app.delete("/api/tasks/{task_id}")
 async def api_delete_task(task_id: str, request: Request):
     if not _auth_ok(request):
         return JSONResponse({"ok": False, "error": "未授权"}, status_code=401)