feat(gallery): tambah CPT Galeri, template page-galeri, filter interaktif, dan native lightbox zoom

inc/admin-menu.php

@@ -904,3 +904,11 @@ function edukarsa_about_page_html() {
     </div>
     <?php
 }
+
+// Menyuntikkan sub-menu Galeri ke dalam menu utama EduKarsa
+add_action('admin_menu', function() {
+    // Deteksi parent slug (edukarsa_main_menu atau edukarsa_settings)
+    $parent = menu_page_url('edukarsa_main_menu', false) ? 'edukarsa_main_menu' : 'edukarsa_settings';
+    add_submenu_page( $parent, 'Semua Galeri', '📸 Galeri Fasilitas', 'manage_options', 'edit.php?post_type=galeri' );
+    add_submenu_page( $parent, 'Kategori Galeri', '📂 Kategori Galeri', 'manage_options', 'edit-tags.php?taxonomy=kategori_galeri&post_type=galeri' );
+}, 100);

inc/cpt-slider.php

@@ -46,3 +46,30 @@ function edukarsa_slider_save_meta( $post_id ) {
     if ( isset( $_POST['slider_link'] ) ) { update_post_meta( $post_id, '_slider_link', sanitize_text_field( $_POST['slider_link'] ) ); }
 }
 add_action( 'save_post', 'edukarsa_slider_save_meta' );
+
+// --- REGISTRASI CPT GALERI & TAXONOMY ---
+function edukarsa_register_galeri_cpt() {
+    register_post_type( 'galeri', array(
+        'labels' => array(
+            'name' => 'Galeri Fasilitas', 
+            'singular_name' => 'Galeri', 
+            'add_new_item' => 'Tambah Foto Galeri',
+            'all_items' => 'Semua Foto Galeri'
+        ),
+        'supports' => array('title', 'editor', 'thumbnail', 'excerpt'), 
+        'public' => true, 
+        'show_ui' => true, 
+        'show_in_menu' => false,
+        'menu_icon' => 'dashicons-format-gallery'
+    ));
+
+    register_taxonomy( 'kategori_galeri', 'galeri', array(
+        'labels' => array('name' => 'Kategori Galeri', 'singular_name' => 'Kategori', 'add_new_item' => 'Tambah Kategori'),
+        'hierarchical' => true, 
+        'public' => true, 
+        'show_ui' => true, 
+        'show_admin_column' => true,
+        'show_in_menu' => false
+    ));
+}
+add_action( 'init', 'edukarsa_register_galeri_cpt', 0 );