AI just randomly deleted my code

frontend/app.js

@@ -1482,6 +1482,30 @@ function startCameraAnimation() {
     idleAnimationId = requestAnimationFrame(animate);
 }
 
+function stopAnimation() {
+    if (idleAnimationId) {
+        cancelAnimationFrame(idleAnimationId);
+        idleAnimationId = null;
+    }
+    currentPathIndex = 0;
+    cameraTime = 0; // Reset camera animation
+    lastFrameTime = null; // Reset frame time tracking
+    const animProgress = document.getElementById('animProgress');
+    if (animProgress) {
+        animProgress.textContent = '0%';
+    }
+}
+
+function cycleViewMode() {
+    // Don't cycle if no route is set yet
+    if (!panorama || !masterPath || masterPath.length === 0) {
+        console.log('Cannot cycle view mode: no route set');
+        return;
+    }
+    viewMode = (viewMode + 1) % 3;
+    updateViewMode();
+}
+
 // ========================================
 // User Profile Logic
 // ========================================