feat(game): add blackjack game component and routing

frontend/src/app/feature/game/blackjack/components/game-controls/game-controls.component.ts

@@ -0,0 +1,36 @@
+import { ChangeDetectionStrategy, Component, EventEmitter, Output } from '@angular/core';
+import { CommonModule } from '@angular/common';
+
+@Component({
+  selector: 'app-game-controls',
+  standalone: true,
+  imports: [CommonModule],
+  template: `
+    <div class="flex justify-center gap-4">
+      <button
+        (click)="onHit.emit()"
+        class="button-primary px-8 py-4 text-lg font-medium min-w-[120px]"
+      >
+        Ziehen
+      </button>
+      <button
+        (click)="onStand.emit()"
+        class="button-primary px-8 py-4 text-lg font-medium min-w-[120px]"
+      >
+        Halten
+      </button>
+      <button
+        (click)="onLeave.emit()"
+        class="bg-accent-red hover:bg-accent-red/80 px-8 py-4 rounded text-lg font-medium min-w-[120px] transition-all duration-300"
+      >
+        Abbrechen
+      </button>
+    </div>
+  `,
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class GameControlsComponent {
+  @Output() onHit = new EventEmitter<void>();
+  @Output() onStand = new EventEmitter<void>();
+  @Output() onLeave = new EventEmitter<void>();
+}