Method markSlackUserDeleted

server/src/db/slack-db.ts:67–74

* Mark a Slack user as deleted (e.g. when the Slack API returns user_not_found)

(slackUserId: string)

   * Mark a Slack user as deleted (e.g. when the Slack API returns user_not_found)
   */
  async markSlackUserDeleted(slackUserId: string): Promise<void> {
    await query(
      `UPDATE slack_user_mappings
       SET slack_is_deleted = true, updated_at = NOW()
       WHERE slack_user_id = $1`,
      [slackUserId]
    );
  }

  /**
   * Get a Slack user mapping by Slack user ID