Clarify placeholder utils and clean imports

src/utils/checksum.py

@@ -15,7 +15,6 @@ import logging
 import sys
 import os
 import json
-import traceback
 from typing import Optional, Any
 
 from termcolor import colored

src/utils/color_scheme.py

@@ -32,5 +32,5 @@ def color_text(text: str, category: str = "default") -> str:
     color = _COLOR_MAP.get(category, "white")
     if color == "orange":
         return _apply_orange(text)
-    attrs = ["bold"] if category in {"info", "warning", "error"} else None
+    attrs = ["bold"] if category in {"info", "warning", "error"} else []
     return colored(text, color, attrs=attrs)

src/utils/fingerprint.py

@@ -10,7 +10,6 @@ facilitating organized and secure storage.
 
 import hashlib
 import logging
-import traceback
 from typing import Optional
 
 # Instantiate the logger

src/utils/fingerprint_manager.py

@@ -3,7 +3,6 @@
 import os
 import json
 import logging
-import traceback
 from pathlib import Path
 from typing import Callable, List, Optional
 

src/utils/key_derivation.py

@@ -19,7 +19,6 @@ import hashlib
 import base64
 import unicodedata
 import logging
-import traceback
 import hmac
 import time
 from enum import Enum