Seed all Pokemon species and add admin pagination

- Update fetch_pokeapi.py to import all 1025 Pokemon species instead of
  only those appearing in encounters
- Add paginated response for /pokemon endpoint with total count
- Add pagination controls to AdminPokemon page (First/Prev/Next/Last)
- Show current page and total count in admin UI
- Add bean for Pokemon forms support task
- Update UX improvements bean with route grouping polish item

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/types/admin.ts

@@ -51,6 +51,13 @@ export interface BulkImportResult {
   errors: string[]
 }
 
+export interface PaginatedPokemon {
+  items: import('./game').Pokemon[]
+  total: number
+  limit: number
+  offset: number
+}
+
 export interface CreateRouteEncounterInput {
   pokemonId: number
   encounterMethod: string