Редактор ачивок в админке + файловое хранилище ачивок (задел под титулы)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/app/router.tsx

@@ -12,6 +12,7 @@ import { MatchDetailPage } from "../pages/MatchDetailPage";
 import { OverallStatsPage } from "../pages/OverallStatsPage";
 import { PublicProfilePage } from "../pages/PublicProfilePage";
 import { AdminAccountsPage } from "../pages/admin/AdminAccountsPage";
+import { AdminAchievementsPage } from "../pages/admin/AdminAchievementsPage";
 import { AdminFactionsPage } from "../pages/admin/AdminFactionsPage";
 import { AdminLayout } from "../pages/admin/AdminLayout";
 import { AdminLogsPage } from "../pages/admin/AdminLogsPage";
@@ -65,6 +66,7 @@ export const router = createBrowserRouter([
       { path: "records", element: <AdminRecordsPage /> },
       { path: "accounts", element: <AdminAccountsPage /> },
       { path: "factions", element: <AdminFactionsPage /> },
+      { path: "achievements", element: <AdminAchievementsPage /> },
       { path: "logs", element: <AdminLogsPage /> },
     ],
   },