* fix(web-ui): Use config display dimensions instead of hardcoded 128x32 in Live Display Preview
- Updated /api/display/current endpoint to calculate display dimensions from config
- Modified HTML template to use config dimensions as fallbacks instead of hardcoded 128x32
- Display preview now shows correct resolution based on cols*chain_length x rows*parallel
- Maintains backward compatibility with existing API responses
* feat(web-ui): Add missing NCAAM Hockey sports manager to web interface
- Added NCAAM Hockey import and OnDemandRunner support
- Updated sports configuration UI to include NCAAM Hockey
- Fixed MLB and MiLB config keys to match template (_scoreboard suffix)
- All sports managers now properly represented in web interface:
- NFL, MLB, MiLB, NHL, NBA, NCAA FB, NCAA Baseball, NCAAM Basketball, NCAAM Hockey, Soccer
- Maintains backward compatibility with existing configurations
* fix(web-ui): Improve on-demand button error handling and prevent crashes
- Enhanced error handling in OnDemandRunner with better logging and fallback modes
- Added robust display manager initialization with fallback support
- Improved error reporting via WebSocket to client for real-time feedback
- Added input validation for on-demand mode parameters
- Enhanced client-side error handling with better user notifications
- Added safety checks to prevent multiple on-demand instances
- Fixed display manager initialization issues that caused crashes
- Improved error recovery and graceful degradation
* Fix leaderboard gap to use display width instead of hardcoded values
- Replace hardcoded spacing (40px) with display_manager.matrix.width
- Update gap calculation to use display width for blank screen simulation
- Fix display width logging to show correct value
- Ensures gap between league rotations matches actual display width
* Add display width gap to news manager
- Add display width gap at the beginning of news content
- Update total_scroll_width calculation to include display width gap
- Modify create_scrolling_image to draw text after display width gap
- Ensures news starts with blank screen period matching display width
- Removed duplicate create_scrolling_image method
* add Live, Recent, Upcoming toggles to display modes on website
- Added config_type='main' to FormData when submitting display form
- Added proper HTTP error handling to catch non-JSON responses
- This fixes the 'Unexpected token <' JSON parsing error when saving display settings
