refactor: ReleaseGate::invalidate() als einzige Stelle zum Zurücksetzen des Freigabe-Zustands; CompatibilityMatrix::locked() und ReleaseGate::lockOf() ersetzen die drei Kopien der Sperrprüfung

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

src/Integrations/Divi/Release/CompatibilityMatrix.php

@@ -76,6 +76,27 @@ final class CompatibilityMatrix
         return true;
     }
 
+    /**
+     * The statuses of those of $features that are not usable – each once, in the order of $features. The one answer
+     * to "what locks this call" for the gate (DiviFeatureGate), the adapters (ReleaseGate::assertFeatures()) and the
+     * refusal (ReleaseStatus::refusalFor()).
+     *
+     * @param list<DiviFeature> $features
+     * @return list<FeatureStatus>
+     */
+    public function locked(array $features): array
+    {
+        $locked = [];
+        foreach ($features as $feature) {
+            $status = $this->of($feature);
+            if (! $status->usable()) {
+                $locked[$feature->value] = $status;
+            }
+        }
+
+        return array_values($locked);
+    }
+
     /** @return list<FeatureStatus> */
     public function unusable(): array
     {