feat: add smoke tests, agent credit ledger, and player cashback page

Introduce admin smoke-test suite with API probes, agent credit transaction history, and player cashback records; fix SmokeTestModule DI and polish admin/player UI assets.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/player/src/layouts/MainLayout.vue

@@ -28,7 +28,8 @@ const isDetailPage = computed(() => {
     p.startsWith('/bet/') ||
     p.startsWith('/bets/') ||
     p.startsWith('/wallet/') ||
-    p === '/profile/edit'
+    p === '/profile/edit' ||
+    p === '/profile/cashbacks'
   );
 });