CI on the shared test and security workflows (WS-Q task 1, OpenVibe.Shared 66b76f8): install, node --check, tests, contract and pin-drift checks from one definition; this repository's own steps kept as inputs and extra steps

ddiff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
iindex 5804b1e7..c6ca12ee 100644
---- a/.github/workflows/ci.yml
++++ b/.github/workflows/ci.yml
@@@ -1,22 +1,16 @@
--name: contracts
++name: ci
  on:
    push:
      branches: [main]
--    tags: ['v*']
    pull_request:
  jobs:
++  # install, node --check, tests, contract and pin-drift checks: the shared test job (WS-Q task 1).
    test:
--    runs-on: ubuntu-latest
--    steps:
--      - uses: actions/checkout@v4
--        with:
--          fetch-depth: 0   # compat.js diffs against the previous release tag
--      - uses: actions/setup-node@v4
--        with:
--          node-version: 22
--          cache: npm
--      - run: npm ci
--      - run: npm test
--  # Secret scan (gitleaks) and dependency audit, shared by every OpenVibers repo (Track Q).
++    uses: OpenVibers/OpenVibe.Shared/.github/workflows/test.yml@66b76f868ea8228aad7811309eafef3726b036f3
++    with:
++      fetch-depth: 0                  # compat.js diffs against the previous release tag
++      syntax-dirs: lib scripts bin
++      pin-drift: false                # the library the pins point at
++  # Secret scan (gitleaks) and dependency audit, shared by every OpenVibers repo.
    security:
--    uses: OpenVibers/OpenVibe.Shared/.github/workflows/security.yml@83c998b65424fb97e6f6de55ad9cc5981767e89c
++    uses: OpenVibers/OpenVibe.Shared/.github/workflows/security.yml@66b76f868ea8228aad7811309eafef3726b036f3