Blocks generated by gr-mcp now have a first-class path to GRC's
graphical editor. Previously, .block.yml was only produced as a
side-effect of full OOT export — now clients can generate YAML
standalone to preview, customize, or use without a full OOT module.
- New MCP tool: generate_grc_yaml (registered in block dev mode)
- New model: GrcYamlResult with yaml_content, notes, filename
- Enhanced YAML generation: flags, asserts from min/max bounds,
parameter descriptions, docstring extraction
- New prompt resource: prompts://block-generation/grc-yaml
- 10 new unit tests for GRC YAML generation (475 total, 7 skipped)