Add run management screen to admin panel

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

frontend/src/App.tsx

@@ -8,6 +8,7 @@ import {
   AdminPokemon,
   AdminRouteDetail,
   AdminEvolutions,
+  AdminRuns,
 } from './pages/admin'
 
 function App() {
@@ -27,6 +28,7 @@ function App() {
           <Route path="games/:gameId/routes/:routeId" element={<AdminRouteDetail />} />
           <Route path="pokemon" element={<AdminPokemon />} />
           <Route path="evolutions" element={<AdminEvolutions />} />
+          <Route path="runs" element={<AdminRuns />} />
         </Route>
       </Route>
     </Routes>