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-r23-halfsheet-rows.txt

@@ -0,0 +1,6 @@
+                    {#if lyr.lines.length || lyr.plain}
+                        {@render row("clock", lyr.lines.length ? "Re-time by hand" : "Sync these lyrics", tapLeft ? `${tapLeft.done} of ${tapLeft.total} lines timed — keep going` : "play the song and tap as each line begins", act(openTapSync))}
+                    {/if}
+                    {#if canReduce}
+                        {@render row("music", onReduced ? "Back to the original" : "Play with reduced vocals", onReduced ? "the recording as it is" : lyr.reducing ? "making the copy now — a moment" : "a rough centre cancel, made on this phone", act(() => { void (onReduced ? backToOriginal() : reduceVocals()); }))}
+                    {/if}