[GEMINI] Refactor tests to use Config class and autouse test isolation fixture

tests/test_forensics.py

@@ -4,7 +4,6 @@ import os
 import stat
 import sys
 from click.testing import CliRunner
-from ctf.config import load_config
 from ctf.utils import active_categories
 from ctf.forensics import get_metadata
 from ctf.cli_forensics import forensics_group, metadata