psyc demo now closes with cockpit links pointing at the Worker Mesh and
reports whether the live model server is up. README rewritten to current
state — Worker Mesh, inference server, model-in-operation, the three
services, accurate code layout. Adds docs/demo.md, a one-page run-sheet.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
