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.

app/Livewire/Security/CloudProviderTokenForm.php

@@ -18,18 +18,23 @@ class CloudProviderTokenForm extends Component
 
     public string $provider = 'hetzner';
 
+    public bool $provider_locked = false;
+
     public string $token = '';
 
     public string $name = '';
 
     public ?string $description = null;
 
-    public function mount()
+    public function mount(?string $provider = null): void
     {
+        $this->provider_locked = filled($provider);
+        $this->provider = $provider ?? 'hetzner';
+
         try {
             $this->authorize('create', CloudProviderToken::class);
         } catch (\Throwable $e) {
-            return handleError($e, $this);
+            handleError($e, $this);
         }
     }