Delete a file-header configuration and its associated sample file from S3. The {id} path segment is the file-header id, which must be an existing file-header configuration. Emits an audit event (CAMPAIGN_FILE_HEADERS_DELETED).

Auth

• Account bearer. The owning campaign must belong to the caller's person.company_id and be of type automation, else 403.

Rate limit

• No rate limit.

Path params

Behaviour

• 200 with a success message (no data payload).
• 403 if the caller does not own the config's campaign or is not an automation campaign.
• 404 if no file-header row matches {id} (post-validation guard).
• 422 if {id} does not exist.