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-r47-bg-color.txt

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- The brand's night. It WAS the whole adaptive background until the
+         ground became a gradient, and nothing points at it now:
+         drawable/ic_launcher_ground.xml is the background, and
+         values-v31/themes.xml writes this same colour as a literal on
+         purpose. It is kept for its FILENAME rather than for its value.
+         tauri's own src-tauri/icons/android/values/ic_launcher_background.xml
+         declares this same resource name as #fff, and two files in one
+         values/ directory declaring one colour is a hard aapt2 error — while
+         this file exists, a copy of that one overwrites it instead of
+         colliding with it. Deleting it would build today, since nothing reads
+         the colour; it would just hand that trap back for nothing saved. -->
+    <color name="ic_launcher_background">#FF05080B</color>
+</resources>