fix(homepage): align shell with zibll and restore post stream

Move header-slider outside main, render fluid zones once, default the
latest stream to plain posts by date, and cut dual-render/perf waste so
published posts and hero/banner structure match the zibll contract.

inc/classes/scripts-traits/trait-aksrt-scripts-part-1b.php

@@ -644,8 +644,8 @@ trait AKSRT_Scripts_Part_1b {
             );
         }
 
-        // CMS 首页模块系统：仅在首页 + cms 形态加载
-        $is_cms_home = ($is_home_or_archive && $is_cms_mode) || $is_fixed_homepage;
+        // Legacy freeform CMS home modules: only for non-fixed CMS archive previews.
+        $is_cms_home = ($is_home_or_archive && $is_cms_mode) && !$is_fixed_homepage;
         // 管理员预览模式（?aksrt_preview=...）：无论站点风格都允许加载模块系统资源
         $is_preview = is_user_logged_in() && current_user_can('manage_options') && isset($_GET['aksrt_preview']);
 
@@ -665,6 +665,8 @@ trait AKSRT_Scripts_Part_1b {
         }
 
         if ($is_fixed_homepage) {
+            $enqueue_module('header-components'); // header-slider / hero
+            $enqueue_module('post-card');
             $homepage_css_path = get_template_directory() . '/assets/css/frontend/homepage-fixed.css';
             wp_enqueue_style(
                 'aksrt-homepage-fixed',