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>
Implement 13 endpoints: read-only reference data (games, routes, pokemon),
run CRUD with cascading deletes, and encounter management. Uses Pydantic v2
with camelCase alias generation to match frontend types, and nested response
schemas for detail views.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
