feat(ui): unify team, security, and notification settings layouts

Extract shared settings-layout components and a dedicated team
danger-zone page. Enable modal editing for security resources,
polish OAuth/API-token controls, and align notification and
service configuration UI with the new navigation patterns.

tests/Feature/SecuritySettingsNavigationTest.php

@@ -0,0 +1,31 @@
+<?php
+
+it('uses shared sidebar navigation for keys and tokens pages', function () {
+    $sidebar = file_get_contents(resource_path('views/components/security/settings-layout.blade.php'));
+    $navbar = file_get_contents(resource_path('views/components/dashboard/navbar.blade.php'));
+
+    foreach ([
+        'security/private-key/index.blade.php',
+        'security/private-key/show.blade.php',
+        'security/cloud-tokens.blade.php',
+        'security/cloud-provider-token/show.blade.php',
+        'security/cloud-init-scripts.blade.php',
+        'security/cloud-init-script/show.blade.php',
+        'security/api-tokens.blade.php',
+    ] as $viewPath) {
+        expect(file_get_contents(resource_path("views/livewire/{$viewPath}")))
+            ->toContain('<x-security.settings-layout>')
+            ->not->toContain('<x-security.navbar');
+    }
+
+    expect($sidebar)
+        ->toContain('application-settings-navigation')
+        ->toContain("'label' => 'Private Keys'")
+        ->toContain("'label' => 'Cloud Tokens'")
+        ->toContain("'label' => 'Cloud-Init Scripts'")
+        ->toContain("'label' => 'API Tokens'");
+
+    expect($navbar)
+        ->toContain("request()->routeIs('security.*')")
+        ->not->toContain("['label' => 'API Tokens', 'route' => 'security.api-tokens'");
+});