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-r29-probe.txt

@@ -0,0 +1,9 @@
+        /* the shade's notice, as the app's own record of having posted it —
+           a notification is not a thing the page can be asked about */
+        xfnOn: (function () { try { return !!__ss.xfn.posted; } catch (e) { return false; } })(),
+        xfnClr: (function () { try { return __ss.xfn.clears; } catch (e) { return -1; } })(),
+        xfnMax: (function () { try { return __ss.xfn.max; } catch (e) { return -1; } })(),
+        xfnBad: (function () { try { return __ss.xfn.failed; } catch (e) { return -1; } })(),
+        xfnTitle: (function () { try { return __ss.xfn.title; } catch (e) { return ''; } })(),
+        xfnLine: (function () { try { return __ss.xfn.line; } catch (e) { return ''; } })(),
+        xfnBtn: !![].slice.call(document.querySelectorAll('.phead .all')).find(function (x) { return /Cancel all/.test(x.textContent); }),