UI Improvements and TV mode

includes/persona.php

@@ -57,6 +57,18 @@ function personRequiresPinToActivate(?array $person): bool {
     return ($person['role'] ?? '') === ROLE_HEAD && !empty($person['pin_hash']);
 }
 
+/**
+ * True when at least one person is recorded as Head of household (setup complete).
+ */
+function familyHubHasHeadOfHousehold(array $people): bool {
+    foreach ($people as $p) {
+        if (($p['role'] ?? '') === ROLE_HEAD) {
+            return true;
+        }
+    }
+    return false;
+}
+
 function assertHoHCanManagePeople(array $people): void {
     if (count($people) === 0) {
         return;