cli to control zed camera start and stop. 2. measure now use every svo2 file for 1 fish, give intermideate result and final result with confidecne level(*).

fish_api/app/services/sessions.py

@@ -2,11 +2,12 @@ from __future__ import annotations
 
 import uuid
 from pathlib import Path
+from typing import Tuple
 
 PARTIAL_NAME = "upload.partial"
 
 
-def new_session_dir(base: Path) -> tuple[str, Path]:
+def new_session_dir(base: Path) -> Tuple[str, Path]:
     session_id = uuid.uuid4().hex
     d = base / session_id
     d.mkdir(parents=True, exist_ok=True)