refactor: Remove signal handler from main() function

summarize_yt/cli.py

@@ -2,7 +2,6 @@
 import argparse
 import os
 import re
-import signal
 import sys
 from datetime import datetime
 from yt_dlp import YoutubeDL
@@ -210,15 +209,6 @@ def main():
 
     args = parser.parse_args()
 
-    # Set up signal handler for clean exit
-    def signal_handler(sig, frame):
-        print("\nCleaning up and exiting...")
-        cleanup_files(None)  # Clean any VTT files
-        print(f"Debug: Script terminated by signal at {datetime.now().isoformat()}")
-        sys.exit(0)
-
-    signal.signal(signal.SIGINT, signal_handler)
-
     # Download subtitles
     if not args.quiet:
         print("Downloading subtitles...")