refactor: align addressbook module to MintyPHP\Module\AddressBook namespace

Migrates addressbook service classes from core namespace
(MintyPHP\Service\AddressBook\*) to proper module namespace
(MintyPHP\Module\AddressBook\Service\*), consistent with the
bookmarks module pattern.

Moved to module:
- AddressBookService → modules/addressbook/lib/Module/AddressBook/Service/
- AddressBookServicesFactory → modules/addressbook/lib/Module/AddressBook/Service/
- AddressBookServiceTest → modules/addressbook/tests/Module/AddressBook/Service/
- Pages, templates, CSS, JS all in module directory

All module PHP classes now live under MintyPHP\Module\<Name>\*,
enforced by ModuleStructureContractTest::testModuleClassesUseModuleNamespace.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

modules/addressbook/lib/Module/AddressBook/AddressBookAuthorizationPolicy.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace MintyPHP\Module\AddressBook;
+
+use MintyPHP\Service\Access\AuthorizationDecision;
+use MintyPHP\Service\Access\AuthorizationPolicyInterface;
+use MintyPHP\Service\Access\PermissionService;
+
+/**
+ * Authorization policy for address book abilities.
+ *
+ * Owns the 'addressbook.view' ability and delegates to the
+ * 'address_book.view' permission in the Core PermissionService.
+ */
+final class AddressBookAuthorizationPolicy implements AuthorizationPolicyInterface
+{
+    public const ABILITY_VIEW = 'addressbook.view';
+
+    public function __construct(
+        private readonly PermissionService $permissionService
+    ) {
+    }
+
+    public function supports(string $ability): bool
+    {
+        return $ability === self::ABILITY_VIEW;
+    }
+
+    public function authorize(string $ability, array $context = []): AuthorizationDecision
+    {
+        $actorUserId = (int) ($context['actor_user_id'] ?? 0);
+        if ($actorUserId <= 0) {
+            return AuthorizationDecision::deny(403, 'forbidden');
+        }
+
+        if (!$this->permissionService->userHas($actorUserId, PermissionService::ADDRESS_BOOK_VIEW)) {
+            return AuthorizationDecision::deny(403, 'forbidden');
+        }
+
+        return AuthorizationDecision::allow();
+    }
+}