feat: Introduce dynamic profile filtering with a new service and update user and agent profiles to use separate first and last name fields.

src/app/(agent)/agent/settings/page.tsx

@@ -4,7 +4,8 @@ import { SettingsSidebar, ProfileSettingsForm } from '@/components/settings';
 
 export default function ProfileSettingsPage() {
   const handleSave = (data: {
-    fullName: string;
+    firstName: string;
+    lastName: string;
     career: string;
     email: string;
     phone: string;