Add Builder and Prayers nav links to all admin pages

Every admin page now shows the Builder link (superuser+) and
Prayers link (admin+) consistently in the header nav.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

admin/audio.php

@@ -191,7 +191,11 @@ foreach ($AUDIO_KEYS as $keys) {
         <h1>&#x271D; <?= htmlspecialchars($site_name) ?></h1>
         <div class="header-actions">
             <a href="<?= BASE_URL ?>/" class="btn btn-ghost" style="font-size:13px">&#x2190; View Site</a>
+            <?php if (has_role('superuser')): ?>
+                <a href="<?= BASE_URL ?>/admin/builder.php" class="btn btn-ghost">&#x2712; Builder</a>
+            <?php endif; ?>
             <?php if (has_role('admin')): ?>
+                <a href="<?= BASE_URL ?>/admin/prayers.php" class="btn btn-ghost">Prayers</a>
                 <a href="<?= BASE_URL ?>/admin/users.php" class="btn btn-ghost">Users</a>
             <?php endif; ?>
             <?php if (has_role('superadmin')): ?>