v1.17.1

Patch: CI/release infra only, no skill changes

Test release for the newly-added automated npm-publish-on-release workflow (.github/workflows/publish.yml) — no skills or agents changed since v1.17.0.

• Added scripts/sync_metadata.py: single source of truth for the skill/agent count quoted in package.json, bin/eef.js, and both .claude-plugin/*.json manifests, checked in CI so this can't drift again.
• npm-cli-smoke-test's skill-count assertions now compute the expected count live from skills/ instead of a hard-coded number.
• npm publish now runs automatically when this release is published, guarded by a check that the release tag matches package.json's version.

Full changelog: v1.17.0...v1.17.1