fix(sports): redesign assessment wizard — programs as expandable list with inline groups & centered modal

- Programs display as vertical list items with chevron toggle
- Clicking a program expands its groups panel directly beneath it
- Group creation opens a centered modal popup instead of inline section
- Fixed GroupQuickCreateApiController to return full group data (fees, coach, discipline)
- Groups render with progress bars and proper fee display after creation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>