feat: Warnung, wenn lokale Werte ein zugewiesenes Preset überdecken

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>

src/Integrations/Divi/Compose/Warnings.php

@@ -9,6 +9,7 @@ use LIT\MCP\Integrations\Divi\BlockTree\Block;
 use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
 use LIT\MCP\Integrations\Divi\BlockTree\NodeSummary;
 use LIT\MCP\Integrations\Divi\Design\DesignSystem;
+use LIT\MCP\Integrations\Divi\Design\PresetAssignment;
 use LIT\MCP\Integrations\Divi\Schema\ShortformMap;
 
 defined('ABSPATH') || exit;
@@ -16,8 +17,9 @@ defined('ABSPATH') || exit;
 /**
  * Quality warnings of a Divi write (spec §5.5) – only about the nodes this call created or
  * changed (and their children): fixed colors/fonts where a global one fits, images without
- * alt text, empty modules, heading jumps, the code module. Similar existing sections
- * (lit/library-find-similar) follow with the Library in Etappe 3. Pure PHP.
+ * alt text, empty modules, heading jumps, the code module, local values that cover an assigned
+ * preset (ruling R5). Similar existing sections (lit/library-find-similar) follow with the Library
+ * in Etappe 3. Pure PHP.
  */
 final class Warnings
 {
@@ -33,7 +35,7 @@ final class Warnings
         'divi/slide' => ['image.innerContent', 'src', 'alt'],
     ];
 
-    public function __construct(private DesignSystem $design)
+    public function __construct(private DesignSystem $design, private ?PresetAssignment $presets = null)
     {
     }
 
@@ -58,7 +60,8 @@ final class Warnings
                 ...$this->code($block, $id),
                 ...$this->image($block, $id),
                 ...$this->empty($block, $id),
-                ...$this->fixedValues($block, $id)
+                ...$this->fixedValues($block, $id),
+                ...$this->coveredPresets($block, $id)
             );
         }
 
@@ -161,6 +164,27 @@ final class Warnings
         return $warnings;
     }
 
+    /**
+     * Ruling R5: local values that cover an explicitly assigned preset of the block. Only Divi blocks that name a
+     * preset cost work (opaque blocks – global instances – are never looked into); the preset book is read when the
+     * first such block comes up, never for a page without presets.
+     *
+     * @return list<string>
+     */
+    private function coveredPresets(Block $block, string $id): array
+    {
+        if ($this->presets === null || ! $block->isDivi() || $block->isOpaque() || ! self::namesPresets($block)) {
+            return [];
+        }
+
+        return $this->presets->overrides()->describe($id, $block->attrs(), $this->presets->names());
+    }
+
+    private static function namesPresets(Block $block): bool
+    {
+        return NodeSummary::presetIds($block) !== [] || NodeSummary::groupPresets($block) !== [];
+    }
+
     /**
      * Heading jumps (h2 → h4) in page order where the later heading belongs to a touched block.
      *

src/Integrations/Divi/Pages/DiviComposition.php

@@ -160,6 +160,6 @@ class DiviComposition
 
     public function warnings(): Warnings
     {
-        return new Warnings($this->design->read());
+        return new Warnings($this->design->read(), $this->presets());
     }
 }