The wrapper jar path was resolved from the script's own location, but
gradlew picks the *project* to build from the process's current
directory, not from its own script location. Invoking the helper from
a CWD outside its tree (e.g. another worktree) silently built the
wrong repo's :app, once observed as a ClassNotFoundException for a
test class that only existed in the intended worktree.
cd to the already-resolved repo/worktree root before invoking gradlew
so connectedDebugAndroidTest always targets the correct tree
regardless of the caller's CWD. Update the README's usage note to
match.
Closes#284
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>