feat: add settings data upload and single-name user forms

Allow SuperAdmins to upload import JSON from settings, and update user UI for merged name, gender, and extended profile fields.

src/views/classes/ClassFormView.vue

@@ -97,7 +97,7 @@
             <template #body="{ index }">{{ toPersianDigits(index + 1) }}</template>
           </Column>
           <Column header="نام">
-            <template #body="{ data }">{{ data.name }} {{ data.surname }}</template>
+            <template #body="{ data }">{{ data.name }}</template>
           </Column>
           <Column header="موبایل">
             <template #body="{ data }">
@@ -176,7 +176,7 @@ const availableUsers = computed(() => {
     .filter((u) => !enrolled.has(String(u._id)))
     .map((u) => ({
       ...u,
-      label: `${u.name || ''} ${u.surname || ''} — ${u.phoneNumber || ''}`.trim()
+      label: `${u.name || ''} — ${u.phoneNumber || ''}`.trim()
     }));
 });