Check #advocacy Slack channel for proposals

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The issue title references checking a Slack channel named '#advocacy' for proposals, but the issue body is empty. To start, one would need access to the A/B Street Slack workspace and locate the specified channel. The goal is unclear—whether to summarize, act on, or simply report findings from the channel. Without further context or direction in the issue, a newcomer cannot proceed.

Written by the indexing model from the issue text.