Current node now reads what combos hold for the node's type: every box of
a node structure, by name, and a plain combo's prompt on a prompt box. They
get a chip of their own, a press goes to the combo, and the values go in
only on the user's press, as with the other sets (AD-021).
The rail's tools go by how often they are used: Current node, Model Check,
then the scan, and the tour follows.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
