Log fix bug where log consosle format set to None would throw an exception

Also add prefix "[SettingsLoader] " to print statements in SettingsLoader if we do not write to log

tests/unit/logging_handling/log_testing/test_log_3_custom_console_formatter.py

@@ -28,6 +28,7 @@ def tmp_log_path(tmp_path: Path) -> Path:
 @pytest.fixture
 def basic_log_settings() -> LogSettings:
     """Basic log settings for testing"""
+    # Return a new dict each time to avoid state pollution
     return {
         "log_level_console": LoggingLevel.WARNING,
         "log_level_file": LoggingLevel.DEBUG,
@@ -308,4 +309,54 @@ class TestUpdateConsoleFormatter:
         # Verify message was logged
         assert "Test warning message" in caplog.text
 
+    def test_log_console_format_option_set_to_none(
+        self, tmp_log_path: Path
+    ):
+        """Test that when log_console_format option is set to None, it uses ConsoleFormatSettings.ALL"""
+        # Save the original DEFAULT_LOG_SETTINGS to restore it after test
+        original_default = Log.DEFAULT_LOG_SETTINGS.copy()
+
+        try:
+            # Reset DEFAULT_LOG_SETTINGS to ensure clean state
+            Log.DEFAULT_LOG_SETTINGS = {
+                "log_level_console": Log.DEFAULT_LOG_LEVEL_CONSOLE,
+                "log_level_file": Log.DEFAULT_LOG_LEVEL_FILE,
+                "per_run_log": False,
+                "console_enabled": True,
+                "console_color_output_enabled": True,
+                "console_format_type": ConsoleFormatSettings.ALL,
+                "add_start_info": True,
+                "add_end_info": False,
+                "log_queue": None,
+            }
+
+            # Create a fresh settings dict with console_format_type explicitly set to None
+            settings: LogSettings = {
+                "log_level_console": LoggingLevel.WARNING,
+                "log_level_file": LoggingLevel.DEBUG,
+                "per_run_log": False,
+                "console_enabled": True,
+                "console_color_output_enabled": False,
+                "console_format_type": None,  # type: ignore
+                "add_start_info": False,
+                "add_end_info": False,
+                "log_queue": None,
+            }
+
+            # Verify that None is explicitly set in the input
+            assert settings['console_format_type'] is None
+
+            log = Log(
+                log_path=tmp_log_path,
+                log_name="test_log",
+                log_settings=settings
+            )
+
+            # Verify that None was replaced with ConsoleFormatSettings.ALL
+            # The Log class should replace None with the default value (ALL)
+            assert log.log_settings['console_format_type'] == ConsoleFormatSettings.ALL
+        finally:
+            # Restore original DEFAULT_LOG_SETTINGS
+            Log.DEFAULT_LOG_SETTINGS = original_default
+
 # __END__