feat(workshop): add new customer from new order modal

- Added POST /pos/api/service-orders/customers endpoint for workshop.edit users.

- Added 'Nuevo cliente' modal reachable from the new service order form.

- After creation the customer is automatically selected in the order.

pos/static/js/workshop.js

@@ -23,6 +23,7 @@ var Workshop = (function() {
     var vehicleSearchTimer = null;
     var selectedEditVehicle = null;
     var newVehicleContext = null;
+    var newCustomerContext = null;
     var currentView = 'list';
     var currentPage = 1;
     var perPage = 25;
@@ -768,6 +769,65 @@ var Workshop = (function() {
         }
     }
 
+    function openNewCustomerModal(context) {
+        newCustomerContext = context || 'new';
+        document.getElementById('newCustomerModal').classList.add('is-open');
+        document.getElementById('ncName').value = '';
+        document.getElementById('ncPhone').value = '';
+        document.getElementById('ncEmail').value = '';
+        document.getElementById('ncRfc').value = '';
+        document.getElementById('ncPriceTier').value = '1';
+        document.getElementById('ncAddress').value = '';
+    }
+
+    function openNewCustomerModalFromNewOrder() {
+        openNewCustomerModal('new');
+    }
+
+    function closeNewCustomerModal() {
+        document.getElementById('newCustomerModal').classList.remove('is-open');
+    }
+
+    async function saveNewCustomer() {
+        var name = document.getElementById('ncName').value.trim();
+        if (!name) {
+            alert('El nombre es obligatorio');
+            return;
+        }
+        var payload = {
+            name: name,
+            phone: document.getElementById('ncPhone').value.trim() || null,
+            email: document.getElementById('ncEmail').value.trim() || null,
+            rfc: document.getElementById('ncRfc').value.trim() || null,
+            price_tier: parseInt(document.getElementById('ncPriceTier').value, 10) || 1,
+            address: document.getElementById('ncAddress').value.trim() || null,
+            branch_id: (currentOrder ? currentOrder.branch_id : null) || (window.POS_USER ? window.POS_USER.branch_id : null)
+        };
+        try {
+            var res = await api('POST', '/customers', payload);
+            var label = name + (payload.phone ? ' (' + payload.phone + ')' : '');
+            if (newCustomerContext === 'new') {
+                var sel = document.getElementById('noCustomer');
+                var opt = document.createElement('option');
+                opt.value = res.id;
+                opt.textContent = label.trim();
+                sel.appendChild(opt);
+                sel.value = res.id;
+                if (typeof customers !== 'undefined') {
+                    customers.push({id: res.id, name: name, phone: payload.phone, rfc: payload.rfc});
+                }
+            } else {
+                selectedEditCustomer = {id: res.id, name: name};
+                document.getElementById('eoCustomerSearch').value = name;
+                document.getElementById('eoCustomerId').value = res.id;
+            }
+            toast('Cliente creado');
+            closeNewCustomerModal();
+        } catch (e) {
+            alert('Error: ' + e.message);
+        }
+    }
+
     // ─── Actions ───
 
     function changeStatus() {
@@ -1181,6 +1241,10 @@ var Workshop = (function() {
         openNewVehicleModalFromNewOrder: openNewVehicleModalFromNewOrder,
         closeNewVehicleModal: closeNewVehicleModal,
         saveNewVehicle: saveNewVehicle,
+        openNewCustomerModal: openNewCustomerModal,
+        openNewCustomerModalFromNewOrder: openNewCustomerModalFromNewOrder,
+        closeNewCustomerModal: closeNewCustomerModal,
+        saveNewCustomer: saveNewCustomer,
     };
 })();