feat: lit/tb-create-template – disabled templates, all or nothing

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/Integrations/Divi/ThemeBuilder/ThemeBuilderAccess.php

@@ -124,7 +124,10 @@ class ThemeBuilderAccess
         return $post;
     }
 
-    /** Template $templateId for the Theme Builder tools; any other ID, or a hidden Theme Builder, is not found. */
+    /**
+     * Template $templateId for the Theme Builder tools. Any other ID, a hidden Theme Builder and a template the
+     * user may not edit (canEditTemplate) answer identically: not found (ruling Q18, P12 – like tb-list, Q8/B11).
+     */
     public function template(mixed $templateId, bool $forWrite): WP_Post|WP_Error
     {
         $id = PostGuard::id($templateId);
@@ -140,7 +143,7 @@ class ThemeBuilderAccess
             ! $post instanceof WP_Post
             || $post->post_type !== DiviThemeBuilder::TEMPLATE
             || (string) $post->post_status !== 'publish'
-            || ! $this->visible()
+            || ! $this->canEditTemplate($id)
         ) {
             return Errors::notFound(
                 sprintf('Theme-Builder-Vorlage %d gibt es nicht.', $id),
@@ -148,10 +151,6 @@ class ThemeBuilderAccess
             );
         }
 
-        if (! current_user_can('edit_post', $id)) {
-            return Errors::forbidden(sprintf('Keine Berechtigung, Theme-Builder-Vorlage %d zu bearbeiten.', $id));
-        }
-
         return $forWrite ? ($this->writableGate() ?? $post) : $post;
     }