Add optional error prop to DeleteConfirmModal and wire it into AdminRuns
so the backend's rejection message is displayed to the user.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add admin API endpoints for games, routes, pokemon, and route encounters
with full CRUD operations including bulk import. Build admin frontend
with game/route/pokemon management pages, navigation, and data tables.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
