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/hooks/useAdmin.ts

@@ -14,10 +14,10 @@ import type {
 
 // --- Queries ---
 
-export function usePokemonList(search?: string) {
+export function usePokemonList(search?: string, limit = 50, offset = 0) {
   return useQuery({
-    queryKey: ['pokemon', { search }],
-    queryFn: () => adminApi.listPokemon(search),
+    queryKey: ['pokemon', { search, limit, offset }],
+    queryFn: () => adminApi.listPokemon(search, limit, offset),
   })
 }