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/ClassDetailView.vue

@@ -47,7 +47,7 @@
           <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 }"><span dir="ltr">{{ data.phoneNumber || '—' }}</span></template>