feat(server): improve private key and cloud link flows

Add server private key generation from the dropdown, prevent deleting
private keys that are still in use, and close cloud provider link modals
after successful linking.

app/Livewire/Security/PrivateKey/Show.php

@@ -4,6 +4,7 @@ namespace App\Livewire\Security\PrivateKey;
 
 use App\Models\PrivateKey;
 use App\Support\ValidationPatterns;
+use Illuminate\Auth\Access\AuthorizationException;
 use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
 use Livewire\Component;
 
@@ -22,8 +23,12 @@ class Show extends Component
 
     public bool $isGitRelated = false;
 
+    public bool $isInUse = false;
+
     public $public_key = 'Loading...';
 
+    public string $deleteDisabledReason = 'This private key is currently used by a server, application, or Git app and cannot be deleted.';
+
     protected function rules(): array
     {
         return [
@@ -74,16 +79,17 @@ class Show extends Component
         }
     }
 
-    public function mount()
+    public function mount(?string $private_key_uuid = null)
     {
         try {
-            $this->private_key = PrivateKey::ownedByCurrentTeam(['name', 'description', 'private_key', 'is_git_related', 'team_id'])->whereUuid(request()->private_key_uuid)->firstOrFail();
+            $this->private_key = PrivateKey::ownedByCurrentTeam(['name', 'description', 'private_key', 'is_git_related', 'team_id'])->whereUuid($private_key_uuid ?? request()->private_key_uuid)->firstOrFail();
 
             // Explicit authorization check - will throw 403 if not authorized
             $this->authorize('view', $this->private_key);
 
             $this->syncData(false);
-        } catch (\Illuminate\Auth\Access\AuthorizationException $e) {
+            $this->isInUse = $this->private_key->isInUse();
+        } catch (AuthorizationException $e) {
             abort(403, 'You do not have permission to view this private key.');
         } catch (\Throwable) {
             abort(404);
@@ -102,7 +108,15 @@ class Show extends Component
     {
         try {
             $this->authorize('delete', $this->private_key);
-            $this->private_key->safeDelete();
+
+            if ($this->private_key->isInUse()) {
+                $this->isInUse = true;
+                $this->dispatch('error', $this->deleteDisabledReason);
+
+                return;
+            }
+
+            $this->private_key->delete();
             currentTeam()->privateKeys = PrivateKey::where('team_id', currentTeam()->id)->get();
 
             return redirectRoute($this, 'security.private-key.index');