[WIP] make logging to do on separate file for each run on each script, and use seaparate folders for each type of log

[Copilot]

• Analyze current logging implementation in src/utils/logger.py
• Review how scripts use the logger (fetch_new_uploads.py, update_video_stats_hourly.py, populate_channels_from_a_list.py)
• Identify that init_db.py doesn't use the logger utility (uses print statements)
• Modify setup_logger function to support script-specific and run-specific log files
• Update logging directory structure to logs/{script_name}/run_{timestamp}.log
• Update fetch_new_uploads.py to use new logging parameters
• Update update_video_stats_hourly.py to use new logging parameters
• Update populate_channels_from_a_list.py to use new logging parameters
• Optionally update init_db.py to use the logging utility
• Update config.yaml documentation to reflect new logging structure
• Test the changes with sample script runs

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