apm recognises its own settings.json hook entries only through the
.claude/apm-hooks.json sidecar. With the sidecar gitignored, apm install
in a fresh clone keeps the committed SessionStart entry as user-owned and
appends a duplicate, so apm audit --ci reports drift and the apm-audit-ci
pre-push hook fails. Reproduced on main and this branch with apm 0.28.0.
Commit the sidecar in apm's exact serialisation, exclude it from
pretty-format-json alongside settings.json, and record the correction
in ADR-0019.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>