Fix payment gateway settings save/load issues

- Fix sandbox checkbox loading logic (use === true instead of !== false)
- Add console logging to debug save operations
- Add auto-reload after save to verify changes
- Fixes issue where sandbox mode always saved as true

templates/dashboard/admin_payment_settings.html

@@ -930,7 +930,7 @@ function loadPaymentGateways() {
                 document.getElementById('paypalClientId').value = gateways.paypal.client_id || '';
                 document.getElementById('paypalClientSecret').value = gateways.paypal.client_secret || '';
                 document.getElementById('paypalWebhookSecret').value = gateways.paypal.webhook_secret || '';
-                document.getElementById('paypalSandbox').checked = gateways.paypal.sandbox !== false;
+                document.getElementById('paypalSandbox').checked = gateways.paypal.sandbox === true;
             }
             
             if (gateways.stripe) {
@@ -938,7 +938,7 @@ function loadPaymentGateways() {
                 document.getElementById('stripePublishableKey').value = gateways.stripe.publishable_key || '';
                 document.getElementById('stripeSecretKey').value = gateways.stripe.secret_key || '';
                 document.getElementById('stripeWebhookSecret').value = gateways.stripe.webhook_secret || '';
-                document.getElementById('stripeSandbox').checked = gateways.stripe.sandbox !== false;
+                document.getElementById('stripeSandbox').checked = gateways.stripe.sandbox === true;
             }
             
             if (gateways.bitcoin) {
@@ -1013,6 +1013,8 @@ function savePaymentGateways() {
         }
     };
     
+    console.log('Saving payment gateways:', gatewaysData);
+    
     fetch('{{ url_for(request, "/api/admin/settings/payment-gateways") }}', {
         method: 'POST',
         headers: {
@@ -1021,14 +1023,18 @@ function savePaymentGateways() {
         body: JSON.stringify(gatewaysData)
     })
     .then(response => {
+        console.log('Response status:', response.status);
         if (!response.ok) {
             throw new Error('Failed to save payment gateway configuration');
         }
         return response.json();
     })
     .then(result => {
+        console.log('Save result:', result);
         if (result.success) {
             showToast('Payment gateway configuration saved successfully', 'success');
+            // Reload to verify
+            setTimeout(() => loadPaymentGateways(), 500);
         } else {
             showToast(result.error || 'Error saving payment gateway configuration', 'danger');
         }