Add filter controls to admin tables

Pokemon (type), Evolutions (trigger), Games (region/generation),
and Runs (status/game) now have dropdown filters alongside search.
Server-side filtering for paginated tables, client-side for small datasets.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/hooks/useAdmin.ts

@@ -21,10 +21,10 @@ import type {
 
 // --- Queries ---
 
-export function usePokemonList(search?: string, limit = 50, offset = 0) {
+export function usePokemonList(search?: string, limit = 50, offset = 0, type?: string) {
   return useQuery({
-    queryKey: ['pokemon', { search, limit, offset }],
-    queryFn: () => adminApi.listPokemon(search, limit, offset),
+    queryKey: ['pokemon', { search, limit, offset, type }],
+    queryFn: () => adminApi.listPokemon(search, limit, offset, type),
   })
 }
 
@@ -213,10 +213,10 @@ export function useBulkImportBosses(gameId: number) {
 
 // --- Evolution Queries & Mutations ---
 
-export function useEvolutionList(search?: string, limit = 50, offset = 0) {
+export function useEvolutionList(search?: string, limit = 50, offset = 0, trigger?: string) {
   return useQuery({
-    queryKey: ['evolutions', { search, limit, offset }],
-    queryFn: () => adminApi.listEvolutions(search, limit, offset),
+    queryKey: ['evolutions', { search, limit, offset, trigger }],
+    queryFn: () => adminApi.listEvolutions(search, limit, offset, trigger),
   })
 }