Removes scripts/railiance-rhythm (units, installer, runner); the host
units were uninstalled from railiance01. Docs now name the claim loop as
the only scheduled executor, a manual one-shot for recovery until the
legacy expiry, and profile-pin rollback after cutover.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 51320@bnt-lap001
Assistant-Session: 9d40b4c7-8e3c-42ee-b755-d658d4640d6c
Document the three-layer model, add railiance-rhythm executor install, and
point playbooks at rein-aharness fi-research-brief instead of local crontab.
