Refactor code for improved readability and consistency

- Consolidated multiline string formatting into single-line for SQL queries in multiple files.
- Adjusted argument formatting in function calls for better alignment and readability.
- Removed unnecessary line breaks and improved spacing in various sections of the codebase.
- Updated test cases to maintain consistency in formatting and improve clarity.

tests/unit/test_config_e2e.py

@@ -24,7 +24,7 @@ def test_end_to_end_config_workflow():
     assert service.get_last_updated_at() is None
 
     # Test setting a value
-    with patch('arbitrade.config.service.ConfigSettingRepository') as mock_repo_class:
+    with patch("arbitrade.config.service.ConfigSettingRepository") as mock_repo_class:
         mock_repo_instance = Mock()
         mock_repo_class.return_value = mock_repo_instance