Fix mobile Today handoff clearance (#1202)

frontend/dashboard.css

@@ -1191,6 +1191,7 @@ textarea { resize: vertical; min-height: 120px; }
 @media (max-width: 600px) {
   body { padding-bottom:calc(66px + env(safe-area-inset-bottom)); }
   body.mobile-today-active { padding-bottom:calc(var(--mobile-today-clearance, 166px) + env(safe-area-inset-bottom)); }
+  body:has(.mobile-today-hud:not([hidden]):not([data-overlay-hidden="true"])) { padding-bottom:calc(var(--mobile-today-clearance, 166px) + env(safe-area-inset-bottom)); }
   header { min-height:56px; max-height:64px; padding:6px 10px; align-items:center; gap:8px; background:rgba(11,21,38,.98); }
   .app-brand .muted, #clock { display:none; }
   .app-live-status { margin-left:auto; }