feat(slots): update balance handling on spin results

frontend/src/app/feature/game/slots/slots.component.ts

@@ -109,17 +109,20 @@ export default class SlotsComponent implements OnInit, OnDestroy {
       next: (result) => {
         setTimeout(() => {
           this.slotResult.set(result);
-
+          
           if (result.status === 'win') {
             this.userService.updateLocalBalance(result.amount);
           }
-
+          
+          this.userService.refreshCurrentUser();
+          
           this.isSpinning = false;
         }, 1500);
       },
       error: (err) => {
         console.error('Error spinning slot machine:', err);
         this.userService.updateLocalBalance(betAmount);
+        this.userService.refreshCurrentUser();
         this.isSpinning = false;
       },
     });