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-r24-importer-regex.txt

@@ -0,0 +1,8 @@
+    spotify: "Spotify", "apple-music": "Apple Music", tidal: "TIDAL", deezer: "Deezer",
+    links: "Pasted links",
+};
+
+/* Mirrors the backend's detector closely enough to CHOOSE a door; the
+   backend decides for real. A paste holding even one track link takes the
+   link path, so a list copied out of Spotify never parses as track names. */
+const TRACK_LINK = /(?:spotify:track:[A-Za-z0-9]{22})|(?:\/\/(?:open\.spotify\.com\/(?:[\w-]+\/)*track\/|(?:www\.)?deezer\.com\/(?:[\w-]+\/)*track\/|(?:[\w-]+\.)?tidal\.com\/(?:[\w-]+\/)*track\/|music\.apple\.com\/[^\s]*(?:\/song\/|[?&]i=)))/i;