fix: keep first-task coach host visible (Closes #1272)

frontend/mobile-first-task.js

@@ -62,7 +62,10 @@
 
   function renderCoach() {
     if (!options.coach) return;
-    options.coach.hidden = !(options.mediaQuery.matches && state() === 'coaching' && options.isTodayActive());
+    const visible = options.mediaQuery.matches && state() === 'coaching' && options.isTodayActive();
+    options.coach.hidden = !visible;
+    const host = options.coach.closest?.('[data-mobile-today-hud]');
+    if (visible && host) host.hidden = false;
   }
 
   function render() {