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-syncroom-markup.txt

@@ -0,0 +1,11 @@
+        {#if cols.length}
+            <div class="sy-strip">
+                {#each cols as v, i (i)}<i class="sy-col" style="height:{Math.max(3, v * 100).toFixed(0)}%"></i>{/each}
+                {#each rows as r, i (i)}
+                    {#if r.time_ms != null}<span class="sy-tick" style="left:{pct(r.time_ms).toFixed(2)}%"></span>{/if}
+                {/each}
+                <span class="sy-play" style="left:{pct((player.position ?? 0) * 1000).toFixed(2)}%"></span>
+            </div>
+        {/if}
+        <button class="sy-est" onclick={() => { if (tapSync.estimated) clearEstimate(); else estimateTimings(); }} disabled={tapSync.reading !== "ready"}>{estLabel}</button>
+