Research scaffold boundary

Lab owns paper, investigation and experiment templates and rules. Install axm-lab and use paper_scaffold, paper_check, investigation_scaffold, and experiment_scaffold. Paper creation requires local venue PROFILE.md, year EDITION.yaml and a selected edition template; it may precede investigations.

Init supplies the generic provider rendering and checking primitives plus Python, Node and workspace support. It bundles no paper or experiment template. init_scaffold --kind paper and --kind experiment fail with routing guidance; init_check similarly redirects paper/experiment contexts to Lab. The generic render_scaffold("paper", ...) is a low-level provider seam; callers should use Lab’s public tool to validate and snapshot edition inputs.

Learning owns its templates, metadata and rules through the installed axm-learning[scaffold] provider. See template selection.