fix: merge后14个测试修复+前端TS编译修复 - 895/895通过+前端零错误

backend/tests/test_tickets.py

@@ -50,7 +50,7 @@ class TestCreateTicket:
 
     async def test_create_ticket_instance_not_found(self, client: AsyncClient, developer_token):
         resp = await _create_ticket(client, developer_token, instance_id=9999)
-        assert resp.status_code == 400
+        assert resp.status_code == 404
 
 
 class TestGetTicket: