Add threaded channel messages to issue comments for support

Your support channel threads aren't captured, leaving case comments incomplete and audits missing. They are appended to the linked issue so teams see full context same day.

Overview

When support conversations live only in chat, engineers and ops lose audit trails and context. This flow copies threaded messages into the linked issue as comments so support and engineering have the full conversation available for triage, reducing back-and-forth and restoring context same day.