S1 candidate for Filbert's review on #1518: build.md, build.patch and
build-manifest.sha256 (34 files at base fef4b362). The candidate itself
is not committed.
proto-v3a-notes-correction: the schema has 36 triggers; the printed 35 is
counted after the tamper check's DROP TRIGGER. Found by Rocko.
Co-Authored-By: Claude Opus 5.5 <[email protected]>