refactor(admin): drop homepage mixed content model and publish-resource preset

inc/classes/settings/class-aksrt-settings-home-cms.php

@@ -255,7 +255,6 @@ class AKSRT_Settings_Home_Cms {
             'homepage_default_view'              => isset($s['homepage_default_view']) ? sanitize_key((string) $s['homepage_default_view']) : 'list',
             'homepage_sort_ajax_enabled'         => !isset($s['homepage_sort_ajax_enabled']) || !empty($s['homepage_sort_ajax_enabled']),
             'homepage_sticky_tabs_enabled'       => !isset($s['homepage_sticky_tabs_enabled']) || !empty($s['homepage_sticky_tabs_enabled']),
-            'homepage_content_model'             => isset($s['homepage_content_model']) && in_array($s['homepage_content_model'], ['post', 'mixed'], true) ? $s['homepage_content_model'] : 'post',
             'home_list_sort_dropdown'            => !empty($s['home_list_sort_dropdown']),
             'homepage_tab_posts_per_page'        => max(1, min(20, (int) ($s['homepage_tab_posts_per_page'] ?? 6))),
             'homepage_tab_limit'                 => max(1, min(12, (int) ($s['homepage_tab_limit'] ?? 4))),
@@ -276,9 +275,13 @@ class AKSRT_Settings_Home_Cms {
         return $settings;
     }
 
+    /**
+     * Homepage always uses ordinary posts. Kept for API stability.
+     *
+     * @return string Always 'post'.
+     */
     public static function homepage_content_model(): string {
-        $settings = self::get_homepage_fixed_settings();
-        return $settings['homepage_content_model'];
+        return 'post';
     }
 
     public static function homepage_tabs(): array {

inc/classes/settings/trait-aksrt-settings-homepage-reader.php

@@ -31,9 +31,9 @@ trait AKSRT_Settings_Homepage_Reader {
     }
 
     /**
-     * Homepage content model.
+     * Homepage always uses ordinary posts.
      *
-     * @return string 'post' or 'mixed'
+     * @return string Always 'post'.
      */
     public static function homepage_content_model(): string {
         return AKSRT_Settings_Home_Cms::homepage_content_model();