src/viewport/ held three classes only src/editor/ ever used, and framing.ts sat
under graph/ although the scene view wants the same bounds sum. The graph, the
texture and the container tab repeated the same header, subscription and
disposal code with two silent divergences: the graph tab said "nothing shown"
with null instead of '', and the texture tab refell back to the first asset on
a selection change but not on a project event.
These arrive together because GraphCanvas ties them: it reads framing from its
new home, hands its fold marks to folding.ts, and its '' change is what
GraphEditor must agree with.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
