Second parent is the frozen upstream `ouroboros` head (23ab428f, 407 commits
since the merge base a76961de); first parent is v7.0.0-rc.8 (18b9832e).
Every upstream change lands in v7's owning leaf: S1 transplants keep upstream's
bodies (comments verbatim) under the call-time handle idiom, S2 hand-merges keep
both intents, S3 keeps v7 only with proof (retired 7.0 ABI surfaces, superseded
mechanisms). Per-symbol relocation ledger: docs/archive/v7next/LEDGER_CORRECTIONS.md
(F2 absorption section). Provisional decisions awaiting owner ratification:
D-18 (two-destination symbols), D-19 (acceptance rows follow upstream R2),
D-20 (acceptance_dialogue stays deleted), D-21 (tools/registry.py: facade
import block only).
Docs: upstream ARCHITECTURE/DEVELOPMENT as the base with compact v7 deltas;
bookkeeping moved to docs/archive/v7next. Size-ratchet manifest, domain
manifest and generated inventories regenerated; new leaves: tools/write_shape
walker, gateway/cost_breakdown, tools/core_secret_paths; provider_catalogs.py
and acceptance_dialogue.py removed (v7 owners).
9698e2e077