changed logic in ocr related to init camera

resources/views/fields/camera-capture.blade.php

@@ -201,6 +201,7 @@ document.addEventListener('DOMContentLoaded', () => {
         // },
         async initCamera() {
             try {
+                if (this.stream) this.stream.getTracks().forEach(track => track.stop());
                 this.stream = await navigator.mediaDevices.getUserMedia({
                     video: {
                         facingMode: this.currentFacingMode, // 'user' or 'environment'
@@ -212,6 +213,7 @@ document.addEventListener('DOMContentLoaded', () => {
                 this.$refs.video.srcObject = this.stream;
             } catch (err) {
                 console.error('Error accessing camera:', err);
+                alert("Cannot access camera. Enable permissions or use HTTPS.");
             }
         }