7aa53fc docs(spec): ingest-spec.md — normative ingest layer contract (I1) git-subtree-dir: shared git-subtree-split: 7aa53fcf6823bda8c492b53762e3fbfd39ea3058
db86e15 docs: document subtree consumption — R1 realized, sync is pull-only git-subtree-dir: shared git-subtree-split: db86e159148d7d8553a38516e174370cf913f889
git-subtree-dir: shared git-subtree-split: 7d2b46cee29d5c4946cef06d067332f705641999