fix: resolve invalid session token by correctly extracting token from North API response

resources/views/north_checkout.blade.php

@@ -47,6 +47,7 @@
             });
 
             const data = await response.json();
+            console.log('North Session Response:', data);
 
             if (data.error) {
                 document.getElementById('checkout-container').innerHTML = `<div class="alert alert-danger">${data.error}</div>`;
@@ -54,9 +55,14 @@
             }
 
             const sessionToken = data.sessionToken;
+            if (!sessionToken) {
+                document.getElementById('checkout-container').innerHTML = `<div class="alert alert-danger">Invalid session token received from server.</div>`;
+                return;
+            }
 
             // Initialize North Checkout
             // The global 'checkout' object is provided by checkout.js
+            console.log('Mounting checkout with token:', sessionToken);
             await checkout.mount(sessionToken, 'checkout-container');
 
             // Handle completion