Two small corrections found on review.

(a) The values file recorded `apex_record` only on the dual-family path, so
the dc0 v4 file carried no provenance at all -- and the asymmetry would have
read as a bug once commit 2 gives dc1 the apex field. Added `source_v4`,
recorded on BOTH families, because the v4 prefixes come from lib-net.sh and
NEVER from the apex: a values file carrying only `apex_record` misattributes
half its own inputs. Re-derived dc0; the rendered overlay is byte-identical
(a3b30e40...) and dc1 still reproduces exactly.

(b) docs/session-ledger.md's third rotation note was left MANGLED by an
earlier edit -- a sentence broke off mid-number and ran into a stray fragment
of the 2026-07-25 MAAS-admin-recovery summary. Flagged at this session's open;
repaired here rather than only reported, with a note saying so and a pointer
to that summary's archived body.

Gauntlet ALL GREEN (85) on vcloud; repo-lint 0 fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf