fix(livewire): add input validation to unmanaged container operations

Add container name validation and shell argument escaping to
startUnmanaged, stopUnmanaged, restartUnmanaged, and restartContainer
methods, consistent with existing patterns used elsewhere in the
codebase.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Livewire/Server/Resources.php

@@ -3,6 +3,7 @@
 namespace App\Livewire\Server;
 
 use App\Models\Server;
+use App\Support\ValidationPatterns;
 use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
 use Livewire\Component;
 
@@ -29,6 +30,11 @@ class Resources extends Component
 
     public function startUnmanaged($id)
     {
+        if (! ValidationPatterns::isValidContainerName($id)) {
+            $this->dispatch('error', 'Invalid container identifier.');
+
+            return;
+        }
         $this->server->startUnmanaged($id);
         $this->dispatch('success', 'Container started.');
         $this->loadUnmanagedContainers();
@@ -36,6 +42,11 @@ class Resources extends Component
 
     public function restartUnmanaged($id)
     {
+        if (! ValidationPatterns::isValidContainerName($id)) {
+            $this->dispatch('error', 'Invalid container identifier.');
+
+            return;
+        }
         $this->server->restartUnmanaged($id);
         $this->dispatch('success', 'Container restarted.');
         $this->loadUnmanagedContainers();
@@ -43,6 +54,11 @@ class Resources extends Component
 
     public function stopUnmanaged($id)
     {
+        if (! ValidationPatterns::isValidContainerName($id)) {
+            $this->dispatch('error', 'Invalid container identifier.');
+
+            return;
+        }
         $this->server->stopUnmanaged($id);
         $this->dispatch('success', 'Container stopped.');
         $this->loadUnmanagedContainers();