feat(compat): Profile, Gates und Pods über den Kompatibilitätskern

Neu: Tier, Profile, Compatibility, CapabilityLocked, CapabilityGate, CompatibilityComponent, ProvidesCompatibility, DiviProfile sowie PodsFeature, PodsCompatibility und PodsIntegration. Das CapabilityGate sperrt gesperrte und unbekannte Fähigkeits-IDs (übernimmt die Sperre unbekannter IDs vom DiviFeatureGate) und delegiert nur Divi ausdrücklich. Pods-Schema, -Lesen, -Schreiben und -Feldrechte laufen über usable(PodsFeature::…); Schreiben verlangt FieldRead und FieldWrite, damit ein Rollback keine Werte verliert. lit-site-status meldet Pods über die CompatibilityComponent.

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

src/Integrations/IntegrationRegistry.php

@@ -5,6 +5,10 @@ declare(strict_types=1);
 namespace LIT\MCP\Integrations;
 
 use LIT\MCP\Abilities\Ability;
+use LIT\MCP\Compatibility\Compatibility;
+use LIT\MCP\Compatibility\Profile;
+use LIT\MCP\Compatibility\ProvidesCompatibility;
+use LogicException;
 
 defined('ABSPATH') || exit;
 
@@ -17,6 +21,7 @@ final class IntegrationRegistry
     private ?array $loaded = null;
 
     private bool $booted = false;
+    private ?Compatibility $compatibility = null;
 
     public function __construct(Integration ...$integrations)
     {
@@ -63,7 +68,8 @@ final class IntegrationRegistry
     }
 
     /**
-     * Abilities of the available integrations, grouped by integration id (registry order).
+     * Abilities of the available integrations, grouped by integration id (registry order). An integration without
+     * abilities (Pods) is no group.
      *
      * @return array<string, list<Ability>>
      */
@@ -71,6 +77,9 @@ final class IntegrationRegistry
     {
         $groups = [];
         foreach ($this->loaded() as [$integration, $own]) {
+            if ($own === []) {
+                continue;
+            }
             $groups[$integration->id()] = array_merge($groups[$integration->id()] ?? [], $own);
         }
 
@@ -101,6 +110,29 @@ final class IntegrationRegistry
         return $labels;
     }
 
+    /** @return list<Profile> Profiles of every registered integration that provides some, available or not. */
+    public function compatibilities(): array
+    {
+        $profiles = [];
+        foreach ($this->integrations as $integration) {
+            if ($integration instanceof ProvidesCompatibility) {
+                array_push($profiles, ...$integration->compatibilities());
+            }
+        }
+
+        return $profiles;
+    }
+
+    /**
+     * The compatibility state of all profiles, one shared instance (its matrices are memoised per request).
+     *
+     * @throws LogicException When two profiles or capabilities share an ID (a programming error, PluginTest).
+     */
+    public function compatibility(): Compatibility
+    {
+        return $this->compatibility ??= new Compatibility($this->compatibilities());
+    }
+
     /** @return list<string> Ids of all known integrations, available or not. */
     public function ids(): array
     {