Add export buttons to all admin panel screens

Backend export endpoints return DB data in seed JSON format
(games, routes+encounters, pokemon, evolutions). Frontend
downloads the JSON via new Export buttons on each admin page.

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

frontend/src/api/admin.ts

@@ -83,6 +83,19 @@ export const updateEvolution = (id: number, data: UpdateEvolutionInput) =>
 export const deleteEvolution = (id: number) =>
   api.del(`/evolutions/${id}`)
 
+// Export
+export const exportGames = () =>
+  api.get<Record<string, unknown>[]>('/export/games')
+
+export const exportGameRoutes = (gameId: number) =>
+  api.get<{ filename: string; data: unknown }>(`/export/games/${gameId}/routes`)
+
+export const exportPokemon = () =>
+  api.get<Record<string, unknown>[]>('/export/pokemon')
+
+export const exportEvolutions = () =>
+  api.get<Record<string, unknown>[]>('/export/evolutions')
+
 // Route Encounters
 export const addRouteEncounter = (routeId: number, data: CreateRouteEncounterInput) =>
   api.post<RouteEncounterDetail>(`/routes/${routeId}/pokemon`, data)