- Change create_tag() to use WebDAV POST instead of OCS API which
returned 404 in some Nextcloud versions
- Add llm_judge() helper that evaluates system output against ground
truth with simple TRUE/FALSE prompt
- Replace keyword-based assertions in RAG tests with LLM judge for
more flexible semantic evaluation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>