Fixes CI/CD failing to clone submodule via HTTPS.
Relative path uses same protocol/auth as parent repo.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Convert wc-licensed-product-client from Composer VCS to git submodule
- Add Gitea Actions workflow for automated releases on version tags
- Update composer.json to use path repository for submodule
- Workflow includes: submodule checkout, PHP setup, translation compilation,
version verification, package creation, checksum generation, release upload
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
