fix(frontend): prefer canonical phase for client action gating

frontend/angular/src/app/features/player/player-shell.component.ts

@@ -95,7 +95,7 @@ function resolveLocalStorage(): Storage | undefined {
         <button *ngIf="submitError?.kind === 'guess'" (click)="submitGuess()" [disabled]="loading || !canSubmitGuess">{{ copy('player.retry_guess_submit') }}</button>
       </ng-container>
 
-      <div class="panel" *ngIf="session.reveal && (session.session.status === 'reveal' || session.session.status === 'scoreboard')">
+      <div class="panel" *ngIf="showRevealPanel">
         <h3>Reveal</h3>
         <p><strong>Korrekt svar:</strong> {{ session.reveal.correct_answer }}</p>
         <p><strong>Spørgsmål:</strong> {{ session.reveal.prompt }}</p>
@@ -221,6 +221,10 @@ export class PlayerShellComponent implements OnInit, OnDestroy {
     return isPlayerGameplayActionAllowed(this.session as any, 'submitGuess');
   }
 
+  get showRevealPanel(): boolean {
+    return Boolean(this.session?.reveal && (this.gameplayPhase === 'reveal' || this.gameplayPhase === 'scoreboard'));
+  }
+
   private readonly handleOnline = (): void => {
     this.connectionState = 'reconnecting';
     void this.retryReconnect();
@@ -469,7 +473,7 @@ export class PlayerShellComponent implements OnInit, OnDestroy {
       return;
     }
 
-    const phase = this.session.session.status || 'lobby';
+    const phase = this.gameplayPhase ?? this.session.session.status ?? 'lobby';
     const code = this.normalizeCode(this.session.session.code || this.sessionCode);
     if (!code) {
       return;