S9: boost draft (providerMetadata.sourceRemoteRef) → immediate-rule approve
→ POST /publishing/drafts/:id/amplify { connectionId, kind: repost } →
verify the source status reblogged on Mastodon. ONLY=S9 runs it standalone.
Gap list updated: boost + Temporal-queue + status-read gaps closed
(auto-publish remains a governance-model decision, not a missing route).
