D-011 v15 production-context completion (Gaps A/B/C): reconciliation sub-protocol context follows the checked-execution boundary decision (d011_manifest emission/validation + d011_execution request builders gate-check lineage, default TEST_ONLY, accept PRODUCTION_EXTERNAL); new deterministic frozen placement-cell (1392 = 1296 COMPROMISE + 96 OMISSION/RESTORED) and BFS (21) production builders emit born-lineage records validated by the frozen _placement_contract/_bfs_contract (no engine/checker calls; unique strict-subset profile TRUSTED_RUNTIME); negative+positive tests added; boundary manifest regenerated via the pure generation path canonical(manifest_spec()) sha256 a97334f339ece0397a6dc41581154b2ece8e0d67596058676092b12f74bb02ea. TEST_ONLY discipline unchanged; engines and all other modules untouched; promotion_by_relabel_or_rehash stays 0; no relabel path. master