docs: split Sync-Architecture, add mirror reference Sync-Architecture.md was over the 15 KB page cap. It keeps the explanation. Eagle-Mirror-Reference.md holds the mirrored kinds, the refusal reasons and codes, the eagle-api parked retry, the drift classes, the stored reconcile report and the migration re-push rule. Anchor links on four pages repointed to the moved sections.
docs: split CI and Operating pages under 15 KB
docs(sync): legacy Updates with empty read inherit the parent read
docs: point devbox seeding at data-plane recipe demi-devbox.sh has no run subcommand; the working recipe lives in Operating-DEMI-in-Azure and the repo README.
docs: config mirrors on change, not seed-only
docs: add public-read backfill and repair page Covers db:seed-public-reads stages and resumption, reconcile-eagle.js misfiledParent vs unresolvedParent, the 429 backoff order, and the eagle-api demi-repush.js script including the concurrency-4 APIM throttle measured on test. Links it in from Sync-Architecture, ADR-011 and Connecting-an-Application-to-DEMI in place of the repo-doc pointer.