f786f163bc
Integration (answers 'does it run automatically'): - redbear-ci.yml now runs test-versioning-machinery.sh (33 cases) and verify-external-source-versions.sh on every push/PR; trigger widened to 0.3.* so a release-branch increment keeps CI (and these checks) firing. - The validator already runs in build-preflight.sh Phase 1.0C (every build), and bump-graphics-recipes.sh (invoked by bump-release.sh --with-external) now calls the sync engine — so an external bump propagates + is validated. Engine hardening (both regression-tested): - reconcile_blake3: a vendored bump often left recipe blake3 stale (URL bumped, hash not); the engine now sets recipe blake3 to the authoritative source.tar hash (only when source.tar version matches the URL version; no-op under --check). - transient recipes (no vendored source/) now get their stale cached source.tar bumped to the declared version too, instead of being skipped.