One rule for Filbert's R3 and Dewey's B1: y resolves only while the
whole decide box is shown. Adds N9 widths, the start-unguarded and
timeout fixes, and two defects found by the cheap tests (wrap at
graphemes, answer render throw). 51/51 mutants killed; gate on
122b1223 green, cli 110.
Co-Authored-By: Claude Opus 5.5 <[email protected]>