Replaces the dated subagent-spawn.png with the recaptured floating-windows
still (clean header, three haiku Explore agents, connector lines) and adds
the live ultracode workflow-run window below the feature bullets, in both
READMEs. Dated filenames so caches never serve a stale render.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
