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-r31-css.txt

@@ -0,0 +1,26 @@
+/* ── what the phone says when things go wrong ──────────────────────────
+   The error toast gets the notice's shape: the sentence, and one action
+   beside it where there is one to offer — Try again, or Sign in when the
+   trouble is that nobody is signed in. The rules mirror .toast.notice's
+   above rather than sharing them: this toast is the red one, and its line
+   WRAPS (a translated sentence is a sentence, not a label), which is the
+   one thing the notice's .nt must never do. */
+.toast { display: flex; align-items: center; gap: 12px; }
+.toast .nt { flex: 1; min-width: 0; }
+.toast .na { flex: none; color: #ffd7d7; font-weight: 800; font-size: 13px; padding: 4px 8px; margin: -4px -8px -4px 0; border-radius: 6px; white-space: nowrap; }
+.toast .na:active { background: rgba(255, 255, 255, 0.12); }
+
+/* a stub that is explaining a failure rather than an emptiness: the same
+   card, with the backend's own words under the lead in the muted colour */
+.stub.why { color: var(--text-muted); }
+
+/* the two lines a screen says instead of a spinner that will not end */
+.sec-note.rooms-note,
+.sec-note.offline-note { color: #ffb4b4; }
+
+/* the library folder the rescan could not reach — a row under the folder
+   itself, so the path and what to do about it are in the same place. The
+   path is drawn exactly as the Library folder row above it draws its own
+   (`.m mono`, which .row does not give a face — leave that as it is rather
+   than making these two rows disagree). */
+.row.folder-gone .t { color: #ffb4b4; }