polishing

src/app/components/test-suite/assessments/text-legibility-assessment/text-legibility-assessment.component.ts

@@ -30,7 +30,6 @@ export class TextLegibilityAssessmentComponent implements AfterViewInit, OnDestr
 
   private metricsService = inject(MetricsTrackerService);
 
-  // --- Component State (Restored) ---
   minSize = 2;
   maxSize = 64;
   currentSize = 16;
@@ -49,7 +48,11 @@ export class TextLegibilityAssessmentComponent implements AfterViewInit, OnDestr
 
   ngAfterViewInit() {
     const mv = this.modelViewerRef.nativeElement;
-    this.metricsService.startTracking(mv);
+    mv.addEventListener('ar-status', (event: any) => {
+      if (event.detail.status === 'session-started') {
+        this.metricsService.startTracking(mv);
+      }
+    });
   }
 
   public logInteraction(event: Event) {
@@ -105,7 +108,7 @@ export class TextLegibilityAssessmentComponent implements AfterViewInit, OnDestr
 
   finishAssessment() {
     this.phase = 'finished';
-    
+
     const finalResults = {
       minReadableSize: this.minSizeResult,
       maxReadableSize: this.maxSizeResult,