style: apply ruff auto-fixes

tool/florencevision.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from dataclasses import dataclass
 from pathlib import Path
-from typing import Any, Dict, Iterable, List, Optional, Sequence, Tuple
+from typing import Any, Dict, List, Optional, Sequence, Tuple
 
 from SYS.logger import debug
 

tool/ytdlp.py

@@ -11,7 +11,6 @@ import sys
 import threading
 import time
 import traceback
-from contextlib import AbstractContextManager, nullcontext
 from dataclasses import dataclass
 from pathlib import Path
 from typing import Any, Dict, Iterator, List, Optional, Sequence, cast