Send reminders to owners of claimed factchecks in team chat

Your claimed factchecks in team chat go unreminded and stall publication workflows. This notifies claim owners in-channel to complete tasks before the 48-hour deadline.

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Overview

When claimed factchecks sit idle in team chat, publication timelines get delayed and coordinators spend time chasing updates. This flow automatically pings the claim owner 40 hours after the claim and again before the 48-hour deadline, restoring visibility and keeping tasks on schedule.