* docs(#1650): fix stale opencode install-path claim in core settings
* feat(#1688): warn on stale model bake for static-frontmatter runtimes
* chore(#1688): backfill changeset pr field with real PR number
* test(#1688): make resolveAgentDir assertions use path.join for windows
* docs(#1688): codify windows path-literal-in-assert anti-pattern + align test
