* Fix NBA leaderboard team ID field for logo fetching
- Add missing 'id' field to NBA team standings data structure
- Enables proper logo fetching from assets/sports/nba_logos/
- Fixes 'id' KeyError when creating NBA leaderboard images
- Includes diagnostic and test scripts for verification
* Add NBA logo downloader script and documentation
- download_nba_logos.py: Script to download all 30 NBA team logos from ESPN API
- README_NBA_LOGOS.md: Comprehensive documentation for the logo downloader
- Supports force re-download and quiet modes
- Downloads to assets/sports/nba_logos/ for leaderboard integration
* replace NBA Logos
* return NBA logo
