fix: resolve workspace integration blockers (#5)

apps/viewer-3d/public/samples/Cube.obj

@@ -0,0 +1,16 @@
+# Hand-authored cube fixture
+o Cube
+v -1 -1 -1
+v 1 -1 -1
+v 1 1 -1
+v -1 1 -1
+v -1 -1 1
+v 1 -1 1
+v 1 1 1
+v -1 1 1
+f 1 4 3 2
+f 5 6 7 8
+f 1 2 6 5
+f 2 3 7 6
+f 3 4 8 7
+f 4 1 5 8