android: the handoff — the pending rounds, the pipeline, and what is unverified

Everything written this session that has not been through the device: rounds 43
to 48 (each patch adversarially verified, 43's transient-notice expectation
fixed), a partial round 49, the pipeline scripts, the Android Auto design and
the icon comparison mock. Also the two harness changes that were never A/B'd —
adaptive waits, which may only shorten a declared wait and never lengthen it,
and a ship that runs the mock walk and the deploy at the same time. The A/B and
its 255-step baseline are in handoff/tools; main stays at what the phone has
actually walked.

handoff/rounds/commit-msg23.txt

@@ -0,0 +1,12 @@
+android: tap-to-sync, the per-track auto-sync switch, the vocal-reduced copy
+
+The editor the desktop drives with a mouse is better under a thumb: the
+song plays, the line to time sits large in the middle of the screen with
+the one behind and the one ahead faint around it, and a tap anywhere
+stamps it. One layer the back gesture peels, and a set left mid-tap is
+offered back by the row that opened it; Save writes the track's own
+document, lines never tapped left out of it and the button saying how
+many are kept. The lyrics sheet also gains the per-track auto-sync switch
+and the desktop's reduced-vocals copy — the same title, artist and
+duration, so the words keep following it, and one row puts the original
+back.