feat(security): add editable cloud credential pages

Add dedicated show/edit pages for cloud provider tokens and cloud-init
scripts, including descriptions and UUID routes.

Generate private keys directly from the index and surface cloud provider
API loading errors in server creation flows.

app/Models/CloudInitScript.php

@@ -2,9 +2,7 @@
 
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Model;
-
-class CloudInitScript extends Model
+class CloudInitScript extends BaseModel
 {
     protected $fillable = [
         'team_id',

app/Models/CloudProviderToken.php

@@ -13,6 +13,7 @@ class CloudProviderToken extends BaseModel
         'provider',
         'token',
         'name',
+        'description',
     ];
 
     protected $hidden = [

app/Models/PrivateKey.php

@@ -291,7 +291,7 @@ class PrivateKey extends BaseModel
 
     public function getKeyLocation()
     {
-        return "/var/www/html/storage/app/ssh/keys/ssh_key@{$this->uuid}";
+        return Storage::disk('ssh-keys')->path("ssh_key@{$this->uuid}");
     }
 
     public function updatePrivateKey(array $data)