Marc-Brief (DE) at the top with what shipped, what's fixed, perf
deltas; below it the commit-by-commit landing report, deferred items,
CI/prod state, Codex-OAuth resolution, and the v1.4.15 backlog seed.
STATE.md flipped to finished.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>