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/ins-r42-doc-layout.txt

@@ -0,0 +1,8 @@
+layout is the only thing that has to answer. Two media queries do that.
+Every claim in that sentence was read off the CSS and proved at 915×411
+behind a viewport override; the phone walk now turns a real device over and
+reads each of them there — the angle, the insets around the cutout and the
+gesture pill, the activity, the audio. See **Verifying**. The player sheet
+is the one surface whose portrait shape cannot survive a wide viewport: its
+artwork is a square sized by WIDTH, so at 915×411 the cover came out 879px
+tall and the title, the lane, the transport and the face buttons sat