Improve admin panel UX with toasts, evolution CRUD, sorting, drag-and-drop, and responsive layout

Add sonner toast notifications to all mutations, evolution management backend
(CRUD endpoints with search/pagination) and frontend (form modal with pokemon
selector, paginated list page), sortable AdminTable columns (Region/Gen/Year
on Games), drag-and-drop route reordering via @dnd-kit, skeleton loading states,
card-styled table wrappers, and responsive mobile nav in AdminLayout.

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

frontend/src/types/admin.ts

@@ -72,3 +72,43 @@ export interface UpdateRouteEncounterInput {
   minLevel?: number
   maxLevel?: number
 }
+
+export interface EvolutionAdmin {
+  id: number
+  fromPokemonId: number
+  toPokemonId: number
+  fromPokemon: import('./game').Pokemon
+  toPokemon: import('./game').Pokemon
+  trigger: string
+  minLevel: number | null
+  item: string | null
+  heldItem: string | null
+  condition: string | null
+}
+
+export interface PaginatedEvolutions {
+  items: EvolutionAdmin[]
+  total: number
+  limit: number
+  offset: number
+}
+
+export interface CreateEvolutionInput {
+  fromPokemonId: number
+  toPokemonId: number
+  trigger: string
+  minLevel?: number | null
+  item?: string | null
+  heldItem?: string | null
+  condition?: string | null
+}
+
+export interface UpdateEvolutionInput {
+  fromPokemonId?: number
+  toPokemonId?: number
+  trigger?: string
+  minLevel?: number | null
+  item?: string | null
+  heldItem?: string | null
+  condition?: string | null
+}