Create QA bug ticket from reacted channel message

Reaction-tagged channel messages hide quick QA notes and leave bugs untracked, delaying fixes. Capture ticket summaries and links so engineers can triage the same day.

Overview

When engineers can't find the original context, triage stalls and releases slip. This flow converts reaction-tagged messages into concise, linked tickets and posts the link back to the thread so issues get triaged the same day.