fix: library IDs stay hidden without library access (ruling P13)

Outline, node-get, write outlines, the render summary and replace-text's
opaque-node match name no library ID unless the library group is visible
and the user has divi_library; read-only still names them.

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

src/Integrations/Divi/Pages/DiviWriter.php

@@ -247,7 +247,7 @@ final class DiviWriter
             return ['text' => null, 'truncated' => false];
         }
 
-        $outline = new Outline($this->design->read()->presetNames());
+        $outline = new Outline($this->design->read()->presetNames(), $this->loader->libraryIdsVisible());
 
         return $outline->summary($index, array_map('strval', array_keys($sections)));
     }