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-expect.txt

@@ -0,0 +1,3 @@
+    "sync-room": (i) => i.sync && i.syCount === "0 / 3" && !!i.syNow && i.syStrip === 64 && /Estimate the timing/.test(i.syEst),
+    "sync-estimated": (i) => i.sync && i.syCount === "3 / 3" && i.syTicks === 3 && /Estimated/.test(i.syHint) && /Clear the estimate/.test(i.syEst),
+    "sync-cleared": (i) => i.sync && i.syCount === "0 / 3" && i.syTicks === 0 && /Estimate the timing/.test(i.syEst),