Store the gitea PAT in OpenBAO KV (secret/gitea/push) and fetch it via a
git credential helper instead of keeping it in ~/.git-credentials:
- scripts/git-credential-openbao.sh: helper that reads the cred from the
OpenBAO API using a scoped, read-only periodic token
- scripts/store-gitea-cred.sh: one-time hidden-input store of the PAT
- README: usage + rotation notes
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>