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-r30-mock-steps-lanes.txt

@@ -0,0 +1,5 @@
+    /* an artist whose exhaustive page the mock keeps for four seconds: what
+       is on screen a second and a half in can only be the two fast lanes */
+    { do: `__ss.push('artist', { name: 'Halcyon Drift' })`, name: "artist-lanes", wait: 1200 },
+    { name: "artist-lanes-page", wait: 4200 },
+    { do: `history.back()`, wait: 700 },