Variable Support in Webhook HTTP Headers for OAuth Authentication

NetBrain's webhook follow-up action currently does not support inserting variable values, such as an OAuth token, into the HTTP headers of an outbound webhook call. As a result, integrations that require token-based authentication in the request header cannot be configured through this mechanism. This enhancement would allow users to reference a variable and pass its resolved value into a custom HTTP header when a webhook follow-up action is triggered. Supporting this capability would enable OAuth-based authentication for third-party integrations, such as ServiceNow, allowing customers to meet their security and compliance requirements while automating incident or change creation from NetBrain diagnostics.