Zibll 主线收口：统一 single 并清退 compat 资源路径

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

inc/core-hooks/part-2.php

@@ -469,20 +469,6 @@ add_filter('template_include', function ($template) {
     return $candidate ?: $template;
 });
 
-// 标记为资源的 post：单页改用 single-aksrt_resource.php 模板
-add_filter('single_template', function ($template) {
-    if (!is_singular('post')) return $template;
-    $post = get_queried_object();
-    if (!($post instanceof WP_Post)) return $template;
-    if (!function_exists('aksrt_is_resource_post')) return $template;
-    if (!aksrt_is_resource_post($post)) return $template;
-    if (function_exists('aksrt_is_downloadable_content') && !aksrt_is_downloadable_content($post)) {
-        return $template;
-    }
-    $candidate = locate_template(['single-aksrt_resource.php']);
-    return $candidate ?: $template;
-});
-
 // 资源归档页：标题
 add_filter('document_title_parts', function ($parts) {
     if (get_query_var('aksrt_is_resource_archive')) {