* fix(#844): sync runtime manifest versions on npm version bump
The release workflow bumps package.json via `npm version` but never
stamped the runtime-integration manifests that must track it
(.claude-plugin/plugin.json #766, gemini-extension.json #775), so the
first RC/finalize whose version diverged from the -dev stream failed the
test suite before tagging/publishing.
Add scripts/sync-manifest-versions.cjs (single VERSIONED_MANIFESTS
registry) wired to a `version` npm lifecycle hook that stamps + stages
the manifests on every `npm version` — covering all four release bump
sites and local bumps with no workflow edits. A regression guard test
fails if any repo JSON whose version matches package.json is not
registered, forcing future version-bearing manifests into the sync.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* docs(#844): add changeset for manifest version sync fix
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>