Backend (already committed):
- Migration 007: focus_areas, training_styles, training_characters, skill_categories tables
- routers/catalogs.py: 20 CRUD endpoints for all catalogs
- routers/exercises.py: Updated to support new FK fields
- Trainer focus area assignment for role-based filtering
Frontend (new):
- AdminCatalogsPage: Comprehensive admin UI with 5 tabs
- Focus Areas (with color + icon)
- Training Styles (hierarchical with parent_style_id)
- Training Characters
- Skill Categories (hierarchical)
- Trainer Assignments (trainer → focus area mapping)
- ExercisesPage: Updated to use catalog dropdowns
- Focus area dropdown now loads from API
- Added missing Training Style dropdown
- Training character dropdown now loads from API
- Uses IDs instead of hard-coded text values
- App.jsx: Added /admin/catalogs route
- api.js: Added all catalog endpoints
All form fields standardized: labels on top, full width, left-aligned
Ready for testing via /admin/catalogs
