Yardlet v0.5.2

Fixed

• Pressing p during an auto-drain now shows feedback. The running status
  line replaces the toast area while busy, so the graceful-pause toast was
  invisible exactly when you'd press p — it looked like a no-op. The busy
  status line now reflects the pause flag directly: request a pause and it
  switches to "pausing — will stop after the current task" (persistent, since
  the flag is). Completes the 0.5.1 pause/stop fix.