feat(core): detail drawer + address book list redesign

Introduces a reusable core detail-drawer primitive that slides in from the
right and loads any view via a `*-fragment(none).phtml` endpoint. Bundles the
address book list overhaul that is its first consumer.

Core additions:
- `app-detail-drawer.js` — generic drawer with stepper, focus trap, body
  scroll-lock, URL-hash deep-linking, session-expiry detection
- `app-fragment-init.js` — auto-wires tabs/lookups/confirm/file-upload/
  fslightbox inside injected HTML; consumers do not re-initialize components
- `app-focus-trap.js` — shared focus-trap + refcounted scroll-lock, used by
  both filter-drawer and detail-drawer
- `getHtml()` in `app-http.js` + `SessionExpiredError`; drawer reloads the
  page on auth redirect instead of rendering the login form in the panel
- `DetailDrawerFragmentContractTest` enforces that every `initDetailDrawer`
  consumer ships matching `*-fragment($id).php` + `*-fragment(none).phtml`

Address book list:
- Grid collapses from 9 columns to 4 (identity / context / phone / actions)
  with a two-line identity cell (avatar + name + email)
- Tenant register tabs above the grid using the `app-list-tabs` partial;
  tenant filter wired via hidden toolbar field so grid.js forwards it on
  every data fetch
- Profile body extracted to a shared partial so the full-page view and the
  new drawer fragment share the same markup
- New i18n keys for the drawer/list labels

Also refactors `app-filter-drawer` to reuse the shared focus-trap and
scroll-lock instead of maintaining its own copy, and documents the
detail-drawer convention in CLAUDE.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

modules/addressbook/lib/Module/AddressBook/Service/AddressBookService.php

@@ -135,11 +135,29 @@ class AddressBookService
             );
         }
 
+        $activeTenant = trim((string) ($query['tenant'] ?? ''));
+
+        $tenantTabs = array_values(array_filter(array_map(
+            static function (array $tenant): array {
+                return [
+                    'uuid' => (string) ($tenant['uuid'] ?? ''),
+                    'description' => (string) ($tenant['description'] ?? ''),
+                ];
+            },
+            $tenants
+        ), static fn (array $tab): bool => $tab['uuid'] !== ''));
+        usort($tenantTabs, static fn (array $a, array $b): int => strnatcasecmp(
+            (string) $a['description'],
+            (string) $b['description']
+        ));
+
         return [
             'activeTenants' => $activeTenants,
             'activeRoles' => $activeRoles,
             'activeDepartments' => $activeDepartments,
+            'activeTenant' => $activeTenant,
             'tenantItems' => $tenantItems,
+            'tenantTabs' => $tenantTabs,
             'departments' => $departments,
             'roles' => $roles,
             'customFieldFilterDefinitions' => $customFieldFilterDefinitions,
@@ -191,6 +209,10 @@ class AddressBookService
                 $displayName = (string) ($row['email'] ?? '');
             }
 
+            $primaryTenantLabel = $tenantList[0] ?? '';
+            $primaryDepartmentLabel = $departmentList[0] ?? '';
+            $extraAssignmentsCount = max(0, count($tenantList) - 1) + max(0, count($departmentList) - 1);
+
             $rows[] = [
                 'uuid' => $uuid,
                 'display_name' => $displayName,
@@ -203,6 +225,9 @@ class AddressBookService
                 'tenants' => $tenantList,
                 'departments' => $departmentList,
                 'roles' => $roleList,
+                'primary_tenant_label' => $primaryTenantLabel,
+                'primary_department_label' => $primaryDepartmentLabel,
+                'extra_assignments_count' => $extraAssignmentsCount,
                 'has_avatar' => $uuid !== '' && $this->avatarService->hasAvatar($uuid),
             ];
         }