- Test clearing all cache
- Test clearing by specific type
- Test clearing empty cache
- Test command properly calls underlying function
- Test command help text
- Integration tests for full workflow
- Test text rendering with markdown
- Test unordered and ordered lists
- Test table rendering
- Test diagram rendering (success and error cases)
- Test diagram with custom options
- Test code blocks
- Test edge cases (empty content, no type)
- Test multiple sections
- Test md_table_to_html function
- Integration tests for mixed content
- Replace URL-encoded GET approach with POST requests
- Use local filesystem cache for generated diagrams
- Add error handling with fallback message
- Serve diagrams from MEDIA_URL instead of proxy