Customizable Subject Line with Variables for Network Intent Alert Emails

Network Intent alert email notifications currently use a fixed, non-configurable subject line, so recipients cannot determine which CI, Intent, or status code triggered an alert without opening the email body. This enhancement would allow the subject line to be customized using variables such as CI name, Intent name, and status code. Customers managing high volumes of alert emails would benefit from faster triage, since the subject line alone would convey enough context to prioritize review without opening each message.