feat(helpdesk): add empty Dashboard page with sidebar nav item

Adds helpdesk/dashboard route, empty page/view, Overview nav group in the
sidebar, and Dashboard i18n keys (de + en). No content yet.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

modules/helpdesk/i18n/default_de.json

@@ -37,6 +37,7 @@
   "No tickets found": "Keine Tickets gefunden",
   "No tickets are linked to this debtor in Business Central.": "Diesem Kunden sind in Business Central keine Tickets zugeordnet.",
   "Ticket No.": "Ticket-Nr.",
+  "Dashboard": "Dashboard",
   "Description": "Beschreibung",
   "Status": "Status",
   "Category": "Kategorie",

modules/helpdesk/i18n/default_en.json

@@ -37,6 +37,7 @@
   "No tickets found": "No tickets found",
   "No tickets are linked to this debtor in Business Central.": "No tickets are linked to this debtor in Business Central.",
   "Ticket No.": "Ticket No.",
+  "Dashboard": "Dashboard",
   "Description": "Description",
   "Status": "Status",
   "Category": "Category",

modules/helpdesk/lib/Module/Helpdesk/Providers/HelpdeskLayoutProvider.php

@@ -38,6 +38,7 @@ final class HelpdeskLayoutProvider implements LayoutContextProvider
         }
 
         return ['helpdesk.nav' => [
+            'can_view_dashboard' => true,
             'can_manage_settings' => $canManageSettings,
             'can_view_team' => $canViewTeam,
             'can_view_risk_radar' => $canViewRiskRadar,

modules/helpdesk/module.php

@@ -14,6 +14,7 @@ return [
     'requires' => [],
 
     'routes' => [
+        ['path' => 'helpdesk/dashboard', 'target' => 'helpdesk/dashboard'],
         ['path' => 'helpdesk/search-data', 'target' => 'helpdesk/search-data'],
         ['path' => 'helpdesk/domains', 'target' => 'helpdesk/domains'],
         ['path' => 'helpdesk/domains-data', 'target' => 'helpdesk/domains-data'],

modules/helpdesk/pages/helpdesk/dashboard/index().php

@@ -0,0 +1,16 @@
+<?php
+
+use MintyPHP\Buffer;
+use MintyPHP\Module\Helpdesk\HelpdeskAuthorizationPolicy;
+use MintyPHP\Support\Guard;
+
+Guard::requireLogin();
+Guard::requireAbilityOrForbidden(HelpdeskAuthorizationPolicy::ABILITY_ACCESS);
+
+Buffer::set('title', t('Dashboard'));
+Buffer::set('style_groups', json_encode(['helpdesk']));
+$breadcrumbs = [
+    ['label' => t('Home'), 'path' => 'admin'],
+    ['label' => t('Helpdesk'), 'path' => 'helpdesk'],
+    ['label' => t('Dashboard')],
+];

modules/helpdesk/pages/helpdesk/dashboard/index(default).phtml

@@ -0,0 +1,8 @@
+<div class="app-details-container">
+  <section>
+    <?php
+    $titlebar = ['title' => t('Dashboard')];
+    require templatePath('partials/app-details-titlebar.phtml');
+    ?>
+  </section>
+</div>

modules/helpdesk/templates/aside-helpdesk-panel.phtml

@@ -2,6 +2,7 @@
 
 $layoutNav = is_array($layoutNav ?? null) ? $layoutNav : [];
 $helpdeskNav = is_array($layoutNav['helpdesk.nav'] ?? null) ? $layoutNav['helpdesk.nav'] : [];
+$canViewDashboard = !empty($helpdeskNav['can_view_dashboard']);
 $canManageSettings = !empty($helpdeskNav['can_manage_settings']);
 $canViewTeam = !empty($helpdeskNav['can_view_team']);
 $canViewRiskRadar = !empty($helpdeskNav['can_view_risk_radar']);
@@ -9,6 +10,7 @@ $canManageSoftwareProducts = !empty($helpdeskNav['can_manage_software_products']
 $canViewHandovers = !empty($helpdeskNav['can_view_handovers']);
 $canViewUpdates = !empty($helpdeskNav['can_view_updates']);
 
+$dashboardActive = navActive('helpdesk/dashboard', true);
 $settingsActive = navActive('helpdesk/settings', true);
 $teamActive = navActive('helpdesk/team', true);
 $riskRadarActive = navActive('helpdesk/risk-radar', true);
@@ -17,11 +19,24 @@ $softwareProductsActive = navActive('helpdesk/software-products', true);
 $handoversActive = navActive('helpdesk/handovers', true);
 $updatesActive = navActive('helpdesk/updates', true);
 $customersActive = navActive('helpdesk', true);
-if ($settingsActive['isActive'] || $teamActive['isActive'] || $riskRadarActive['isActive'] || $domainsActive['isActive'] || $softwareProductsActive['isActive'] || $handoversActive['isActive'] || $updatesActive['isActive']) {
+if ($dashboardActive['isActive'] || $settingsActive['isActive'] || $teamActive['isActive'] || $riskRadarActive['isActive'] || $domainsActive['isActive'] || $softwareProductsActive['isActive'] || $handoversActive['isActive'] || $updatesActive['isActive']) {
     $customersActive = ['class' => '', 'aria' => '', 'isActive' => false];
 }
 
 $helpdeskNavGroups = [
+    [
+        'key' => 'helpdesk-overview',
+        'label' => t('Overview'),
+        'icon' => 'bi-speedometer2',
+        'items' => [
+            [
+                'label' => t('Dashboard'),
+                'path' => 'helpdesk/dashboard',
+                'active' => $dashboardActive,
+                'visible' => $canViewDashboard,
+            ],
+        ],
+    ],
     [
         'key' => 'helpdesk-lookup',
         'label' => t('Lookup'),