D-137: repo-carried build spec for the fresh-session handoff ...

Operator directed the build to a fresh session. The design and committee review
lived in a plan file under ~/.claude/plans/ -- outside the repo -- so a session
bootstrapping via the GA-R4 path (CURRENT-STATE -> session-ledger ->
ledger-scan) would never have surfaced it. That is a real durability gap given
repo-is-authoritative, so the spec now lives at
docs/D-137-implementation-plan.md (precedent: docs/D-068-vault-migration-plan-draft.md).

Carries the five ruled decisions and their consequences, the matrix schema
(logical keys only per the SEC-004 ruling), the checker model with file:line
precedents (provider-bundle-check for structure, sandbox-fidelity-check:131-143
for both-bounds), the three tiers, inherited constraints (metadata-only
source-grep guard, gauntlet excerpt regex, preflight 0/1/2, L1/L10), the file
list, and the acceptance test.

Explicitly instructs the next session NOT to make the first run green: the
acceptance test is that the checker REPRODUCES SEC-021/-022/-023 and the
predicted admin-openrc case as NAMED failures. A checker that passes on today's
tree is wrong. Going green is a separate remediation project.

CURRENT-STATE item 9 + the ledger addendum point at it. Auto-memory pointer
updated: policy authority is D-137 per sub-ruling 4, with a verify-first caveat
that creds-audit CLEAN is not evidence of completeness.

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