v0.1.1

• Accept rasuvaeff/understudy 0.2 alongside 0.1. Nothing in the adapter
  changes; the core's 0.2.0 is additive, and on 0.x Composer's caret treats a
  minor as a boundary, so the constraint has to say so explicitly. Widening it
  breaks no existing install.

• The release workflow waits for the matrix build instead of judging it
  mid-flight. A tag pushed right after the merge arrived while master's own
  build was still running, and the guard read a null conclusion as a failed
  one, refusing to create the GitHub Release. Hit for real on the core package
  while tagging v0.1.1. No effect on the package itself.