idk why these weren't committed

tests/test_tier4_interceptor.py

@@ -1,7 +1,6 @@
 from unittest.mock import MagicMock, patch
 from src.shell_runner import run_powershell
 from src import ai_client
-from typing import Any, Optional, Callable
 
 def test_run_powershell_qa_callback_on_failure(vlogger) -> None:
   """Test that qa_callback is called when a powershell command fails (non-zero exit code)."""
@@ -75,7 +74,6 @@ def test_end_to_end_tier4_integration(vlogger) -> None:
 
 def test_ai_client_passes_qa_callback() -> None:
   """Verifies that ai_client.send passes the qa_callback down to the provider function."""
-  from src import ai_client
   qa_callback = lambda x: "analysis"
   
   with patch("src.ai_client._send_gemini") as mock_send:
@@ -89,7 +87,6 @@ def test_ai_client_passes_qa_callback() -> None:
 
 def test_gemini_provider_passes_qa_callback_to_run_script() -> None:
   """Verifies that _send_gemini passes the qa_callback to _run_script."""
-  from src import ai_client
   qa_callback = MagicMock()
   
   # Mock the tool loop behavior