fix: remove non-existent Config import from config command

- Removed Config from import in config.py command file
- Config class doesn't exist in aitbc_cli.config (only CLIConfig exists)
- Config was unused in the command file anyway
- Fixes ImportError that cascaded to fail all commands

cli/aitbc_cli/commands/config.py

@@ -8,7 +8,7 @@ import yaml
 import json
 from pathlib import Path
 from typing import Optional, Dict, Any
-from ..config import get_config, Config
+from ..config import get_config
 from ..utils import output, error, success