Domain/display-name adds now force a full re-scan so newly-added gambling
senders are caught immediately instead of waiting for the incremental UID
window. IMAP-idle NOOP tick lowered 2min -> 30s to close the Junk-folder gap
faster (Outlook drops straight into Junk, which IDLE does not watch).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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