fix: Route priority issue - /order was matched by /{id}

Problem:
POST /payments/gateways/order → 404 'gateway_not_found'

Root Cause:
WordPress REST API matches routes in registration order.
The /gateways/order route was registered AFTER /gateways/{id}.
So /gateways/order was being matched by /gateways/{id} where id='order'.
Then get_gateway('order') returned 'gateway_not_found'.

Solution:
Register specific routes BEFORE dynamic routes:
1. /gateways (list)
2. /gateways/order (specific - NEW POSITION)
3. /gateways/{id} (dynamic)
4. /gateways/{id}/toggle (dynamic with action)

Route Priority Rules:
✅ Specific routes first
✅ Dynamic routes last
✅ More specific before less specific

Before:
/gateways → OK
/gateways/{id} → Matches everything including 'order'
/gateways/{id}/toggle → OK (more specific than {id})
/gateways/order → Never reached!

After:
/gateways → OK
/gateways/order → Matches 'order' specifically
/gateways/{id} → Matches other IDs
/gateways/{id}/toggle → OK

Result:
✅ /gateways/order now works correctly
✅ Sorting saves to database
✅ No more 'gateway_not_found' error

Files Modified:
- PaymentsController.php: Moved /order route before /{id} routes

admin-spa/src/routes/Settings/Payments.tsx

@@ -117,18 +117,26 @@ export default function PaymentsPage() {
   // Initialize order from saved order or gateways
   React.useEffect(() => {
     if (gateways.length > 0 && manualOrder.length === 0 && onlineOrder.length === 0) {
+      console.log('Initializing gateway order...');
+      console.log('All gateways:', gateways.map((g: PaymentGateway) => ({ id: g.id, type: g.type })));
+      console.log('Saved order:', savedOrder);
+      
       // Use saved order if available, otherwise use gateway order
       if (savedOrder.manual.length > 0) {
+        console.log('Using saved manual order:', savedOrder.manual);
         setManualOrder(savedOrder.manual);
       } else {
         const manual = gateways.filter((g: PaymentGateway) => g.type === 'manual').map((g: PaymentGateway) => g.id);
+        console.log('Using gateway manual order:', manual);
         setManualOrder(manual);
       }
       
       if (savedOrder.online.length > 0) {
+        console.log('Using saved online order:', savedOrder.online);
         setOnlineOrder(savedOrder.online);
       } else {
         const online = gateways.filter((g: PaymentGateway) => g.type === 'provider' || g.type === 'other').map((g: PaymentGateway) => g.id);
+        console.log('Using gateway online order:', online);
         setOnlineOrder(online);
       }
     }
@@ -189,14 +197,16 @@ export default function PaymentsPage() {
     
     // Save order to backend
     try {
+      console.log('Saving manual order:', newOrder);
       await api.post('/payments/gateways/order', {
         category: 'manual',
         order: newOrder,
       });
       toast.success('Payment methods reordered');
-    } catch (error) {
+    } catch (error: any) {
       console.error('Failed to save order:', error);
-      toast.error('Failed to save order');
+      console.error('Error response:', error.response?.data);
+      toast.error(error.response?.data?.message || 'Failed to save order');
       // Revert order on error
       setManualOrder(manualOrder);
     }
@@ -215,14 +225,16 @@ export default function PaymentsPage() {
     
     // Save order to backend
     try {
+      console.log('Saving online order:', newOrder);
       await api.post('/payments/gateways/order', {
         category: 'online',
         order: newOrder,
       });
       toast.success('Payment methods reordered');
-    } catch (error) {
+    } catch (error: any) {
       console.error('Failed to save order:', error);
-      toast.error('Failed to save order');
+      console.error('Error response:', error.response?.data);
+      toast.error(error.response?.data?.message || 'Failed to save order');
       // Revert order on error
       setOnlineOrder(onlineOrder);
     }