refactor(auth): enforce team member authorization across app

Restrict sensitive operations to admins/owners and hide sensitive data
from team members:
- Add authorization checks to Livewire components and API endpoints
- Restrict team members from accessing sensitive permissions and data
- Hide environment variable values from non-admin team members
- Update policies to enforce team-level admin status requirement
- Add useSensitivePermissions policy for read:sensitive tokens
- Improve disabled button UX with auth-specific tooltips
- Add authorization checks in middleware for API tokens

Closes authorization gaps in project management, server management,
and settings components.

app/Livewire/SettingsOauth.php

@@ -3,10 +3,13 @@
 namespace App\Livewire;
 
 use App\Models\OauthSetting;
+use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
 use Livewire\Component;
 
 class SettingsOauth extends Component
 {
+    use AuthorizesRequests;
+
     public $oauth_settings_map;
 
     protected function rules()
@@ -131,6 +134,7 @@ class SettingsOauth extends Component
     public function instantSave(string $provider)
     {
         try {
+            $this->authorize('update', instanceSettings());
             $this->updateOauthSettings($provider);
         } catch (\Exception $e) {
             return handleError($e, $this);
@@ -139,7 +143,12 @@ class SettingsOauth extends Component
 
     public function submit()
     {
-        $this->updateOauthSettings();
-        $this->dispatch('success', 'Instance settings updated successfully!');
+        try {
+            $this->authorize('update', instanceSettings());
+            $this->updateOauthSettings();
+            $this->dispatch('success', 'Instance settings updated successfully!');
+        } catch (\Throwable $e) {
+            return handleError($e, $this);
+        }
     }
 }