🔄 **Refactor and extend meetup membership-based authorization**

- Updated `authorizeAccess` to restrict `meetups.edit` views and updates to users in "My-Meetups".
- Attached creators to `meetup_user` pivot for default membership.
- Adjusted related tests to validate membership-based edit permissions.

📱 **Improve sidebar and mobile navigation accessibility**
- Added `aria-labels` to improve screen reader support for sidebar and mobile header elements.
- Updated desktop and mobile user menus alignment for consistency.

⚡ **Enhance Lightning login flow**
- Introduced `lightningLoginInProgress` for smoother polling synchronization with the redirect flow.
- Updated logic to dispatch `lightning-login-ready` event instead of immediate redirect, avoiding race conditions.

tests/Browser/SidebarNavigationTest.php

@@ -0,0 +1,32 @@
+<?php
+
+use App\Models\City;
+use App\Models\Country;
+
+beforeEach(function () {
+    $country = Country::factory()->create(['code' => 'de']);
+    City::factory()->create(['country_id' => $country->id]);
+});
+
+it('renders the sidebar with the user profile reachable on mobile viewport', function () {
+    actingAsUser(['name' => 'Sidebar Tester']);
+
+    $page = visit('/de/dashboard');
+
+    $page->resize(390, 844)
+        ->click('[aria-label="Menü öffnen"]')
+        ->assertSee('Dashboard')
+        ->assertSee('Repository')
+        ->assertSee('Sidebar Tester');
+});
+
+it('renders the sidebar with the user profile on desktop viewport', function () {
+    actingAsUser(['name' => 'Sidebar Tester']);
+
+    $page = visit('/de/dashboard');
+
+    $page->resize(1280, 800)
+        ->assertSee('Dashboard')
+        ->assertSee('Repository')
+        ->assertSee('Sidebar Tester');
+});