style: apply ruff auto-fixes

API/folder.py

@@ -13,8 +13,6 @@ from __future__ import annotations
 import sqlite3
 import json
 import logging
-import subprocess
-import shutil
 import time
 import os
 from contextlib import contextmanager
@@ -303,8 +301,21 @@ class API_folder_store:
                     
                     if should_check_empty:
                         # Check if there are any files or directories in the library root (excluding the DB itself if it was just created)
-                        # We use a generator and next() for efficiency.
                         existing_items = [item for item in self.library_root.iterdir() if item.name != self.DB_NAME]
+
+                        # Allow an empty 'incoming' directory created by upload flow to exist
+                        # (this prevents a false-positive safety check when an upload endpoint
+                        # creates the incoming dir before DB initialization).
+                        if existing_items:
+                            if len(existing_items) == 1 and existing_items[0].name == "incoming" and existing_items[0].is_dir():
+                                try:
+                                    # If the incoming directory is empty, treat it as harmless.
+                                    if not any(existing_items[0].iterdir()):
+                                        existing_items = []
+                                except Exception:
+                                    # If we can't inspect it safely, leave the original items in place
+                                    pass
+
                         if existing_items:
                             # Log the items found for debugging
                             item_names = [i.name for i in existing_items[:5]]
@@ -1378,7 +1389,7 @@ class API_folder_store:
                     (file_hash,
                      existing_title[0]),
                 )
-                logger.debug(f"[save_tags] Preserved existing title tag")
+                logger.debug("[save_tags] Preserved existing title tag")
             elif not existing_title and not new_title_provided:
                 filename_without_ext = abs_path.stem
                 if filename_without_ext: