4525bc6f4d
Post-merge coverage-audit follow-ups to epic #1702 (found by an independent gpt-5.5/high audit + adr-phase-coverage cross-reference). None are CRITICAL — the 9-rule enforcement shipped and works; these close completeness/integrity gaps between ADR-1703's promises and the as-built reality. 1. drift-guard bin/install.js scope (ADR-1703 L114-119): the drift guard covered src/runtime-homes.cts only; the ADR named bin/install.js too. Phase 6's glob expansion made bin/install.js a covered surface. Extended tests/portability-vocab-drift.test.cjs with TWO sound checks: (a) any bin/install.js top-level function that directly returns path.*() must be in PATH_RETURNING_FNS (tight, 0 FP — the body-contains heuristic is unsound here, ~33 FPs); (b) a curated two-way existence lock on the installer path helpers (catches a rename making a vocab entry stale; keeps the curation in sync with PATH_RETURNING_FNS). The residual new-resolver boundary (temp-var shape) is documented. 2. ci-test-scope wiring (the Phase 6 portability selection rule was ineffective): eslint-rules/ was not in the product-code prefix list, so an eslint-rules-only change set code_changed=false and CLEARED the matched tests (reproduced: targeted_tests=[]). Added eslint-rules/ to the prefix list and the P1-P4 RuleTester suites to the selection rule (it previously listed only P5/P6). Verified: code_changed=true, 11 tests selected. 3. ADR-1703 acceptance note amended to record the two further as-built divergences: the disable-ban shipped as an out-of-band test (not the specified local/no-portability-disable meta-rule — the test runs outside ESLint so it cannot be self-disabled, at least as strong); and the drift-guard bin/install.js scope resolution above. Epic #1702 all eight phase boxes now checked. No runtime change; no-changelog (contributor tooling + docs). Closes #1749 Co-authored-by: review-bot <review-bot@gsd>
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