feat: access tab with allowed roles and connection revocation

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

src/Plugin.php

@@ -6,7 +6,9 @@ namespace LIT\MCP;
 
 use LIT\MCP\Abilities\AbilityRegistrar;
 use LIT\MCP\Abilities\ExposurePolicy;
+use LIT\MCP\Admin\AccessTab;
 use LIT\MCP\Admin\AdminNotices;
+use LIT\MCP\Admin\ConnectionRepository;
 use LIT\MCP\Admin\ConnectionStatus;
 use LIT\MCP\Admin\ConnectionTab;
 use LIT\MCP\Admin\SettingsPage;
@@ -47,7 +49,8 @@ final class Plugin
             return;
         }
 
-        (new Access())->register();
+        $access = new Access();
+        $access->register();
         (new RequestContext())->register();
         (new VisibilityFilter())->register();
 
@@ -78,6 +81,7 @@ final class Plugin
         (new SiteHealth($status))->register();
         self::$settingsPage = new SettingsPage([
             new ConnectionTab($status),
+            new AccessTab($access, new ConnectionRepository()),
         ]);
         if (is_admin()) {
             self::$settingsPage->register();