The One image and Pick and refine examples were rebuilt, so every scene that
picks their nodes by id pointed at the wrong node (the Prompt Cleaner shot
wired into a WP Note). Remap the ids and add a test that checks each scene's
ids exist and that it pins a node of its own type.
Every node page opens with a picture shot from a real run (scripts/docs-shots), with pins on its sockets and controls placed from the page and a legend drawn from the node's field list (DocAnnotated).