ruff: enable G (logging format), ignore G004 (f-strings)

Replaces the single G201 selector with the full G group.
Fixes 2x G003 (string concat in log calls) and 2x G202 (redundant
exc_info on logger.exception). G004 (f-strings in logging) is ignored
as f-string style is accepted throughout this codebase.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/documents/parsers.py

@@ -110,7 +110,7 @@ def run_convert(
     args += ["-define", "pdf:use-cropbox=true"] if use_cropbox else []
     args += [str(input_file), str(output_file)]
 
-    logger.debug("Execute: " + " ".join(args), extra={"group": logging_group})
+    logger.debug("Execute: %s", " ".join(args), extra={"group": logging_group})
 
     try:
         run_subprocess(args, environment, logger)

src/documents/views.py

@@ -1506,7 +1506,6 @@ class DocumentViewSet(
                 "document %s: %s",
                 doc.pk,
                 exc,
-                exc_info=True,
             )
             raise ValidationError({"ai": [_("Invalid AI configuration.")]}) from exc
 

src/paperless_ai/chat.py

@@ -155,7 +155,7 @@ def stream_chat_with_documents(query_str: str, documents: list[Document]):
     try:
         yield from _stream_chat_with_documents(query_str, documents)
     except Exception as e:
-        logger.exception(f"Failed to stream document chat response: {e}", exc_info=True)
+        logger.exception("Failed to stream document chat response: %s", e)
         yield CHAT_ERROR_MESSAGE
 
 

src/paperless_mail/mail.py

@@ -637,8 +637,8 @@ class MailAccountHandler(LoggingMixin):
                     self.log.info(f"Located folder: {folder_info.name}")
             except Exception as e:
                 self.log.error(
-                    "Exception during folder listing, unable to provide list folders: "
-                    + str(e),
+                    "Exception during folder listing, unable to provide list folders: %s",
+                    e,
                 )
 
             raise MailError(