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-r49-probe-manifest.txt

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <!-- WITHOUT THIS THE PROBER MEASURES NOTHING AND LOOKS LIKE IT DID.
+         targetSdk 30+ hides every other package from this one, so
+         queryIntentServices() comes back empty and MediaBrowser.connect()
+         fails with nothing useful in the log — which is indistinguishable
+         from "SoulStream has no browse service", i.e. a false report about
+         the one thing this app exists to measure. media3's own
+         SessionToken.java carries the note "We ask the app to declare the
+         <queries> tags, so it's expected that they are missing".
+         Both forms: the package by name for the bind, the action for the
+         PackageManager questions in ProbeActivity.filters(). -->
+    <queries>
+        <package android:name="com.soulstream.app" />
+        <intent>
+            <action android:name="android.media.browse.MediaBrowserService" />
+        </intent>
+    </queries>
+
+    <application
+        android:allowBackup="false"
+        android:label="SoulStream Auto prober">
+        <!-- No launcher filter and no UI: it is started by name
+             (`am start -n com.soulstream.autoprober/.ProbeActivity`), which
+             is why it must be exported. noHistory and excludeFromRecents
+             keep it out of the recents list Kyle actually uses. -->
+        <activity
+            android:name=".ProbeActivity"
+            android:exported="true"
+            android:excludeFromRecents="true"
+            android:noHistory="true"
+            android:theme="@android:style/Theme.Translucent.NoTitleBar" />
+    </application>
+</manifest>