v1.18.9

1.18.9 — 2026-11-01

No functional change. This release closes the gap between main and the release line after 1.18.8 and fixes one time-dependent test.

• Test: the codeDrift stale assertion no longer depends on the checkout's age. scripts/audit-fixes-test.mjs asserted codeDrift(now - 86_400_000).stale === true, which only holds while the checkout's source files are newer than "one day ago": a working copy older than a day failed the suite (317/318) even though codeDrift() was right. The test now injects an epoch clock (codeDrift(0)), so the simulated process start precedes any plausible source mtime. No production code changed.
• Docs corrections that landed on main after 1.18.8: the 1.18.8 changelog wording, the round-8 report counts, and its dev+ino identity note (docs/04-test/20-fix-round8-v1.18.8.md).
• Docs index fixed: docs/README.md was missing the round-8 report entry (20) and still declared version: v1.18.7; both are corrected, and this release's report (21) is listed.
• Suite counts refreshed in README.md / README.en.md / CONTRIBUTING.md to the actual numbers: shell-guard 327, audit-fixes 318, p0-regression 256, validation 31, pack 52, cross-cases 156/156 (27 cases defined, 26 run for free by default; C9 is paid).
• Suites: shell-guard 327, audit-fixes 318, p0-regression 256, validation 31, pack 52, cross-cases 156/156, smoke PASS — npm test green (7 suites).
• Release line: v1.18.8 stays at its release commit (7cbbfca); v1.18.9 marks this docs/test-only release. No behaviour change.