* enhance(#2115): tighten AI-integration gate keywords per re-triage pin Apply the maintainer-pinned scope from the 2026-07-31 re-triage on #2115 exactly: `eval` -> `llm eval`, `ai system` dropped, every other token and the surrounding sentence byte-identical. Supersedes the stale-closed PR #3131, whose broader whole-word-matching rework went beyond the pin. * chore(#2115): set changeset fragment pr to 3431