v0.16.5

Fixed

• A recipe whose name starts with clear (for example recipe "clear search", called as clear search) is called
  instead of being parsed as the built-in clear with a type selector. The built-in forms (clear "Email",
  clear #id) are unchanged.

• False "covered by another widget" warning (seen on a SnackBar action): the hit test can disagree with what a
  real tap reaches on overlays. The warning now appears only when the hit test says covered and the screen did not
  change after the tap, which is the silent-tap case it exists for. Its text now includes the topmost hit render objects.

• Stale Android token file after an app restart: if the token read from the app's cache is rejected again on a
  re-read (the agent could not rewrite the file), the CLI now falls back to the newest PROBE_TOKEN= line in logcat
  instead of retrying the same file until it gives up. The port-holder hint no longer blames the CLI's own adb forward
  for a rejected token on Android.

• go back at the root route no longer exits the app on Android. It used to call the system Back, which killed
  the app and the agent: the step hung until its timeout and every later test failed with a broken pipe. It is now a
  no-op with a warning ("already at the root route"); use close the app to leave the app on purpose. Behavior
  change: a test that relied on go back to exit the app must use close the app.

• A lost Android connection now says when the app process is gone ("the app process ... is not running") instead of
  only "probe token not found".

Changed

• When the agent port refuses connections for 5 s the CLI now says so (is the app running and built with
  --dart-define=PROBE_AGENT=true?) instead of waiting silently for the dial timeout.