Roadmap item and plan: show first retry delay, backoff cap and queue
lifetime on Mail queue and the delivery page, reading postconf -h once
at panel start so a manual override is visible. Explanation only; not
implemented yet. CHANGELOG updated.
Co-Authored-By: Cursor Grok 4.6 <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
