chore: fix lint formatting issues

src/agents/common/toolkits/buildin/__init__.py

@@ -1,5 +1,5 @@
 # buildin 工具包
-from .tools import calculator, query_knowledge_graph, text_to_img_qwen_image, ask_user_question
+from .tools import ask_user_question, calculator, query_knowledge_graph, text_to_img_qwen_image
 
 __all__ = [
     "ask_user_question",

test/test_graph_unit.py

@@ -104,4 +104,4 @@ async def test_txt_add_vector_entity_parsing():
             assert call2["r_type"] == "LIKES"
             assert call2["r_props"] == {"weight": 0.8}
 
-            print("Verification passed!")
+            print("Verification passed!")

test/test_skill_service.py

@@ -279,4 +279,4 @@ async def test_update_skill_dependencies(monkeypatch: pytest.MonkeyPatch):
     assert captured["mcp_dependencies"] == ["mcp-a"]
     assert captured["skill_dependencies"] == ["beta"]
     assert captured["updated_by"] == "root"
-    assert updated.skill_dependencies == ["beta"]
+    assert updated.skill_dependencies == ["beta"]

test/test_skills_backend.py

@@ -42,4 +42,4 @@ def test_selected_skills_backend_readonly_and_visible_only_selected(tmp_path, mo
 
     upload_result = backend.upload_files([("/alpha/a.txt", b"a")])
     assert len(upload_result) == 1
-    assert upload_result[0].error == "permission_denied"
+    assert upload_result[0].error == "permission_denied"