Bounded 15-line summary in docs/session-ledger.md; full body archived to
docs/archive/session-20260726-d137-build.md in this same commit (GA-R4
rule 2). Status remains CURRENT-STATE.md's alone (GA-R1).

GA-R4 F1 cap handled as designed: writing the close summary took the ledger
to 300 against the 300-line cap, so the next-oldest summary rotated out --
a long session forces older summaries out rather than being truncated
itself. Ledger 280/300, close summary 15/15.

GA-R7 memory review: the creds-folder-convention entry asserted the D-137
matrix was NOT BUILT, which this session falsified. Corrected, and the
reasoning-trap half kept (creds-audit CLEAN is still not evidence of
completeness, because absence is invisible to a declaration-based sweep).
Memory index line updated to match.

Stage 4 stays OPEN; no stage closed by this session. The live mission did
not move -- the DC1 Stage-5 chain is where it was at session open, and the
next session resumes it per CURRENT-STATE.

Gauntlet ALL GREEN (81), repo-lint 0-fail, ledger-scan exit 0.

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