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-r36-mock-probe.txt

@@ -0,0 +1,15 @@
+    if (cmd === "playlist_import_probe") {
+        const path = String(args?.path || "");
+        if (!path) return Promise.resolve(null);   /* the desktop's dialog, dismissed */
+        /* the NAME decides the format, the way playlist_formats::detect_format
+           does — the extension first, the stem as the draft's title. The path
+           is only where the bytes were. */
+        const name = String(args?.name || path.split(/[\\/]/).filter(Boolean).pop() || "Playlist");
+        const ext = (name.split(".").pop() || "").toLowerCase();
+        const format = ext === "m3u" || ext === "m3u8" ? "m3u" : ext === "pls" ? "pls" : ext === "xspf" ? "xspf"
+            : ext === "csv" ? "csv" : ext === "json" ? "soulstream" : "text";
+        /* the paste door's own three lines, so the verdicts are already
+           proven: one in the library, one stream, one unresolved */
+        const entries = impParse("Daft Punk - One More Time\nAphex Twin - Track 1\nID - ID");
+        return new Promise((r) => setTimeout(() => r(impDraft(entries, name, format, name.replace(/\.[^.]*$/, ""))), 500));
+    }