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/api/admin.ts

@@ -12,6 +12,7 @@ import type {
   CreatePokemonInput,
   UpdatePokemonInput,
   BulkImportResult,
+  PaginatedPokemon,
   CreateRouteEncounterInput,
   UpdateRouteEncounterInput,
 } from '../types'
@@ -45,7 +46,7 @@ export const listPokemon = (search?: string, limit = 50, offset = 0) => {
   if (search) params.set('search', search)
   params.set('limit', String(limit))
   params.set('offset', String(offset))
-  return api.get<Pokemon[]>(`/pokemon?${params}`)
+  return api.get<PaginatedPokemon>(`/pokemon?${params}`)
 }
 
 export const createPokemon = (data: CreatePokemonInput) =>