unnötige Imports entfernt

math-tutor/backend/test/decision_test.py

 import argparse
 import json
-from typing import Any, Iterable
+from typing import Any
 
 from app.LLM_services import decision_LLM
 from app.deterministic_services import context_store

math-tutor/backend/test/hint_test.py

 import argparse
 import json
-import os
 from typing import Any
 
 from app.LLM_services import hint_LLM