feat(clients): align client form with first and last name API fields

src/app/(modules)/tenants/components/TenantSheet.tsx

@@ -128,7 +128,11 @@ export function TenantSheet({
             </div>
 
             <div className="grid gap-4 md:grid-cols-2">
-              <FormField label="Client" required error={fieldError('client_id')}>
+              <FormField
+                label="Client"
+                required
+                error={fieldError('client_id')}
+              >
                 <Select
                   value={clientId}
                   onValueChange={onClientChange}
@@ -146,7 +150,9 @@ export function TenantSheet({
                   <SelectContent>
                     {clients.map((client) => (
                       <SelectItem key={client.id} value={String(client.id)}>
-                        {client.name}
+                        {[client.first_name, client.last_name]
+                          .filter(Boolean)
+                          .join(' ')}
                       </SelectItem>
                     ))}
                   </SelectContent>