Summary

Adds a GitHub Actions workflow that mirrors OpenSquilla to the Gitee repository at [email protected]:opensquilla/opensquilla.git.

The workflow runs on pushes, tag pushes, published GitHub Releases, a six-hour schedule, and manual dispatch. It mirrors Git refs and Git LFS objects, then verifies the Gitee HEAD ref.

Notes

• The workflow expects a repository secret named GITEE_SSH_PRIVATE_KEY.
• If the secret is missing, the workflow exits successfully with a notice instead of failing the run.
• Release version tags are covered by the Git mirror. Release binary assets are not uploaded to object storage yet; that should be added after choosing OSS/COS/OBS/Kodo credentials and bucket layout.

Validation

• Verified the generated SSH key authenticates to Gitee as opensquilla(@opensquilla).
• Verified [email protected]:opensquilla/opensquilla.git is readable.
• Verified write access with git push --dry-run to a temporary test branch ref; no branch was created.