[BACKEND] Add playlist_uploader_sanitized var (#414)

src/ytdl_sub/entries/variables/entry_variables.py

@@ -300,6 +300,16 @@ class EntryVariables(BaseEntryVariables):
         """
         return self.kwargs_get(PLAYLIST_UPLOADER, self.uploader)
 
+    @property
+    def playlist_uploader_sanitized(self: Self) -> str:
+        """
+        Returns
+        -------
+        str
+            The playlist uploader, sanitized.
+        """
+        return sanitize_filename(self.playlist_uploader)
+
     @property
     def playlist_uploader_url(self: Self) -> str:
         """

tests/unit/entries/conftest.py

@@ -116,6 +116,7 @@ def mock_entry_to_dict(
         "playlist_webpage_url": "https://yourname.here",
         "playlist_uid": "abc123",
         "playlist_uploader": "abc123",
+        "playlist_uploader_sanitized": "abc123",
         "playlist_uploader_id": "abc123",
         "playlist_uploader_url": "https://yourname.here",
         "source_count": 1,