fix: Make heavy imports lazy in utils.py to allow logger import without all deps

src/utils.py

@@ -1,24 +1,22 @@
 """
 Utility functions and logging configuration
 """
+from __future__ import annotations
 
 import logging
 import sys
 from pathlib import Path
-import cv2
-import numpy as np
-from PIL import Image
-import imagehash
 import subprocess
 import os
 import uuid
 import re
 import shutil
-import librosa
-import pandas as pd
-import numpy as np
 import tempfile
 
+# Note: Heavy imports (cv2, imagehash, librosa, pandas, numpy, PIL) are done
+# lazily inside functions that need them to avoid import errors when only
+# the logger is needed.
+
 class ColoredFormatter(logging.Formatter):
     """Custom formatter with colors for terminal output"""
 
@@ -426,6 +424,8 @@ def calculate_durations_with_fuzzy_matching(selected_videos, word_level_segment,
     logger.info(f"✅ Total calculated duration: {total_calculated:.2f}s (expected: {total_duration:.2f}s)")
 
 def is_video_loopable(video_path, frame_check_window=10, threshold=15.0):
+    import cv2
+    import numpy as np
     if not video_path:
         return False
     cap = cv2.VideoCapture(video_path)
@@ -464,6 +464,9 @@ def is_video_loopable(video_path, frame_check_window=10, threshold=15.0):
 
 
 def is_loopable_phash(video_path, hash_diff_threshold=8):
+    import cv2
+    import imagehash
+    from PIL import Image
     if not video_path:
         return False
     cap = cv2.VideoCapture(video_path)
@@ -508,6 +511,8 @@ def is_video_zoomable_tail(video_path, tail_seconds=1, sample_frames=15, motion_
     Checks only the *last few seconds* of the video to see if it's already zooming.
     Returns True if mostly static (safe to add zoom), False if motion already exists.
     """
+    import cv2
+    import numpy as np
     return False
     cap = cv2.VideoCapture(video_path)
     if not cap.isOpened():