Keep the run selector and buttons on one line on phones

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

web/style.css

@@ -480,7 +480,8 @@ dialog.save-dlg { width: min(560px, calc(100vw - 32px)); }
   .review-title { flex: 1; }
   .review-head .end { flex: 1 1 100%; justify-content: flex-start; }
   .review-head .end .lbl { display: none; }
-  #runSel { flex: 1 1 auto; max-width: none; }
+  .review-head .end { flex-wrap: nowrap; }
+  #runSel { flex: 1 1 0; min-width: 0; max-width: none; }
   .review-bar .seg { flex: 1 1 100%; }
   .review-bar .seg button { flex: 1; padding: 0 6px; font-size: 12px; }
   .srow { padding-left: 12px; padding-right: 8px; }