MCP Git Server

# System Tests End-to-end tests for full system functionality. ## Coverage Target: 80%+ System tests should cover: - Complete user workflows - MCP protocol compliance - Server lifecycle management - Error handling and recovery ## Structure - `mcp_protocol/` - MCP protocol compliance tests - `server_lifecycle/` - Server startup, shutdown, and lifecycle tests ## Guidelines - Test complete workflows - Use real MCP protocol messages - May use external resources (test repositories) - Longer execution time acceptable (< 10 seconds per test) - Mark slow tests with `@pytest.mark.slow`