Ruff format with defaults.

src/auto_archiver/core/formatter.py

@@ -12,7 +12,7 @@ from auto_archiver.core import Metadata, Media, BaseModule
 class Formatter(BaseModule):
     """
     Base class for implementing formatters in the media archiving framework.
-    
+
     Subclasses must implement the `format` method to define their behavior.
     """
 
@@ -21,4 +21,4 @@ class Formatter(BaseModule):
         """
         Formats a Metadata object into a user-viewable format (e.g. HTML) and stores it if needed.
         """
-        return None
+        return None