Update the release workflow to check for an existing release tag before creation. If a release is already present, upload the assets using the --clobber flag to ensure the workflow is idempotent and prevents failures on reruns.
* BLD - add GitHub contribution and release automation * BLD - restrict dev merges to maintainers * BLD - add automated review and PR test resources * DOC - require AI governance checks * FIX - pin patched nanoid dependency * TRY - trigger webhook delivery * TRY - verify webhook routing * TRY - rerun pull request checks