fix(wpmc 1.0.1): remove __() from labels (no translations, fixes WP 6.7 notice)

Replace all __('...', 'wp-multi-city') calls in CPT, taxonomy, ACF field group,
and options page label arrays with literal Russian strings. The plugin ships no
.mo translation files, so wrapping labels in __() was YAGNI and triggered the
WP 6.7+ _load_textdomain_just_in_time notice.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

includes/class-post-type.php

@@ -16,16 +16,16 @@ final class PostType
     {
         register_post_type(self::SLUG, [
             'labels'              => [
-                'name'               => __('Шорткоды', 'wp-multi-city'),
-                'singular_name'      => __('Шорткод', 'wp-multi-city'),
-                'menu_name'          => __('Шорткоды', 'wp-multi-city'),
-                'add_new'            => __('Добавить', 'wp-multi-city'),
-                'add_new_item'       => __('Добавить шорткод', 'wp-multi-city'),
-                'edit_item'          => __('Редактировать', 'wp-multi-city'),
-                'new_item'           => __('Новый', 'wp-multi-city'),
-                'view_item'          => __('Смотреть', 'wp-multi-city'),
-                'search_items'       => __('Поиск', 'wp-multi-city'),
-                'not_found'          => __('Не найдено', 'wp-multi-city'),
+                'name'               => 'Шорткоды',
+                'singular_name'      => 'Шорткод',
+                'menu_name'          => 'Шорткоды',
+                'add_new'            => 'Добавить',
+                'add_new_item'       => 'Добавить шорткод',
+                'edit_item'          => 'Редактировать',
+                'new_item'           => 'Новый',
+                'view_item'          => 'Смотреть',
+                'search_items'       => 'Поиск',
+                'not_found'          => 'Не найдено',
             ],
             'public'              => false,
             'exclude_from_search' => true,