scripts/pre-deploy-tests.sh runs every local test group before a deploy:
proto unit (jest), content schema validation, all CMS integration suites
(security, serializer, save, optimistic lock, versions, logo, login, logout,
guide, bottom bar), publish command/integration and plane sync unit tests.
Per-group PASS/FAIL summary; non-zero exit on any failure.
deploy_to_stage_on_local.sh now runs the full suite as step 1 — a failing
group aborts the release before push. Deploy workflow docs updated.
Closes MITHOME-70
