Repertoire as an aligned two-column checkbox list

The Auto VJ pill style (hidden checkbox, ragged flex wrap) didn't fit
the long clip names: #glb-anims now lays out as a two-column grid with
visible aligned checkboxes, ellipsis on overflow and green accent.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/control.js

@@ -178,7 +178,7 @@ function renderGlbClips(names) {
       send({ type: 'glbAnims', names: glbClipSel });
     });
     l.appendChild(c);
-    l.appendChild(document.createTextNode(' ' + n));
+    l.appendChild(document.createTextNode(n));
     box.appendChild(l);
   });
 }