fix

.env.example

@@ -37,6 +37,7 @@ AWS_ACCESS_KEY_ID=your-aws-access-key
 AWS_SECRET_ACCESS_KEY=your-aws-secret-key
 AWS_REGION=us-east-1
 AWS_S3_BUCKET=your-s3-bucket-name
+S3_FOLDER_PREFIX=development  # Root folder for all uploads (e.g., 'development', 'staging', 'production')
 
 # Email (SMTP / SendGrid)
 MAIL_HOST=smtp.sendgrid.net