fix: resolve CI linting issues - remove unused imports in test files

.tests/test_recorder.py

@@ -1,10 +1,7 @@
 """Tests for CLI Command Memory recorder."""
 
-import tempfile
-import os
 from cli_memory.recorder import CommandRecorder
-from cli_memory.models import Command, CommandType
-from cli_memory.config import Config
+from cli_memory.models import CommandType
 
 
 def test_recorder_initialization():