feat: site-status test tool and core integration

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

src/Integrations/Core/SiteStatusAbility.php

@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\Core;
+
+use LIT\MCP\Abilities\Ability;
+use LIT\MCP\Access;
+use WP_Error;
+
+final class SiteStatusAbility implements Ability
+{
+    public function __construct(private EnvironmentProbe $probe, private Access $access)
+    {
+    }
+
+    public function name(): string
+    {
+        return 'lit/site-status';
+    }
+
+    public function label(): string
+    {
+        return 'Website-Status';
+    }
+
+    public function description(): string
+    {
+        return 'Überblick: Website, WordPress-Version, eigener Benutzer und Rollen, '
+            . 'erkannte Integrationen (Divi, Pods, The Events Calendar).';
+    }
+
+    public function inputSchema(): array
+    {
+        return ['type' => 'object', 'properties' => [], 'additionalProperties' => false];
+    }
+
+    public function outputSchema(): ?array
+    {
+        return [
+            'type' => 'object',
+            'properties' => [
+                'site' => ['type' => 'object'],
+                'wordpress' => ['type' => 'string'],
+                'user' => ['type' => 'object'],
+                'allowed_roles' => ['type' => 'array', 'items' => ['type' => 'string']],
+                'components' => ['type' => 'array'],
+            ],
+            'required' => ['site', 'wordpress', 'user', 'allowed_roles', 'components'],
+        ];
+    }
+
+    public function annotations(): array
+    {
+        return ['readonly' => true, 'destructive' => false, 'idempotent' => true];
+    }
+
+    public function isDirect(): bool
+    {
+        return true;
+    }
+
+    public function permission(array $input): bool|WP_Error
+    {
+        return true;
+    }
+
+    public function execute(array $input): mixed
+    {
+        $user = wp_get_current_user();
+
+        return [
+            'site' => ['name' => get_bloginfo('name'), 'url' => home_url()],
+            'wordpress' => get_bloginfo('version'),
+            'user' => ['id' => $user->ID, 'roles' => array_values($user->roles)],
+            'allowed_roles' => $this->access->allowedRoles(),
+            'components' => $this->probe->components(),
+        ];
+    }
+}