- Introduced `playwright_extract_m3u8.py` to extract M3U8 URLs from YouTube videos using Playwright.
- Added `README_PLAYWRIGHT.md` for usage instructions and requirements.
- Created `expand_and_test_proxies.py` to expand user-provided proxies and test their validity.
- Implemented `generate_proxy_whitelist.py` to generate a whitelist of working proxies based on testing results.
- Added sample proxy files: `user_proxies.txt` for user-defined proxies and `proxies_sample.txt` as a template.
- Generated `expanded_proxies.txt`, `whitelist.json`, and `whitelist.txt` for storing expanded and valid proxies.
- Included error handling and logging for proxy testing results.
