Add contributor and modify contributing.md

about/about-us.md

@@ -34,6 +34,7 @@ We believe in the power of open source collaboration. This project thrives on co
 - Luca Perrozzi ([LinkedIn](https://www.linkedin.com/in/luca-perrozzi/))
 - Roberto Catalano ([LinkedIn](https://www.linkedin.com/in/roberto-catalano-5b7793123/), [GitHub](https://github.com/Robobc))
 - Tiago Prelato ([LinkedIn](https://www.linkedin.com/in/tiago-prelato-257787210/), [X](https://x.com/SneyX_))
+- Bruce Miao
 
 ## Join Us
 

about/contributing.md

@@ -170,21 +170,13 @@ class DatabaseToolRepository(ToolRepository):
 
 ### Test Coverage for Source Code Changes
 
-**All PRs that modify source code in the library must include appropriate tests:**
-
-- **Unit Tests**: Test individual components in isolation
-- **Integration Tests**: Test component interactions
-- **Contract Tests**: Verify interface implementations
-- **End-to-End Tests**: Test complete workflows
+**All PRs that modify source code in the library must include appropriate tests**
 
 ### Test Structure
 
 ```
 tests/
-├── unit/           # Fast, isolated tests
-├── integration/    # Component interaction tests
-├── e2e/           # End-to-end workflow tests
-└── fixtures/      # Test data and mocks
+├── ...
 ```
 
 ### Test Quality Standards
@@ -194,23 +186,6 @@ tests/
 - **Speed**: Unit tests should run in milliseconds
 - **Clarity**: Test names should describe the scenario being tested
 
-```python
-# Good test structure
-class TestToolInvoker:
-    def test_invoke_with_valid_params_returns_success_response(self):
-        # Arrange
-        mock_client = Mock(spec=HttpClient)
-        mock_client.post.return_value = {"status": "success"}
-        invoker = ToolInvoker(mock_client)
-
-        # Act
-        result = invoker.invoke(sample_tool, {"param": "value"})
-
-        # Assert
-        assert result["status"] == "success"
-        mock_client.post.assert_called_once()
-```
-
 ## Code Quality Standards
 
 ### Code Style