Fix Telegram webhook registration: replace file_get_contents with Http client

file_get_contents fails on many hosts due to allow_url_fopen or SSL restrictions.
Http:: (Guzzle) is more reliable and shows a clearer error message on failure.

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

app/Http/Livewire/Chat/ShowConfiguracionChat.php

@@ -3,6 +3,7 @@
 namespace App\Http\Livewire\Chat;
 
 use App\Models\ChatConfig;
+use Illuminate\Support\Facades\Http;
 use Jantinnerezo\LivewireAlert\LivewireAlert;
 use Livewire\Component;
 
@@ -82,35 +83,29 @@ class ShowConfiguracionChat extends Component
         $token = trim($this->telegram_token);
 
         if (! $token) {
-            $this->webhookResult = 'El token de Telegram esta vacio.';
+            $this->webhookResult = '⚠️ El token de Telegram está vacío.';
             return;
         }
 
         ChatConfig::set('telegram_token', $token);
 
         $webhookUrl = url('/chat/webhook/telegram');
-        $apiUrl     = "https://api.telegram.org/bot{$token}/setWebhook";
 
-        $context = stream_context_create([
-            'http' => [
-                'method'  => 'POST',
-                'header'  => "Content-Type: application/x-www-form-urlencoded\r\n",
-                'content' => http_build_query(['url' => $webhookUrl]),
-                'timeout' => 10,
-            ],
-        ]);
+        try {
+            $response = Http::timeout(15)
+                ->post("https://api.telegram.org/bot{$token}/setWebhook", [
+                    'url' => $webhookUrl,
+                ]);
 
-        $result = @file_get_contents($apiUrl, false, $context);
+            $data = $response->json();
 
-        if ($result === false) {
-            $this->webhookResult = 'Error de conexion con la API de Telegram.';
-            return;
+            $this->webhookResult = ($data['ok'] ?? false)
+                ? '✅ Webhook registrado correctamente.'
+                : '❌ Error de Telegram: ' . ($data['description'] ?? 'respuesta desconocida');
+
+        } catch (\Throwable $e) {
+            $this->webhookResult = '❌ No se pudo conectar con Telegram: ' . $e->getMessage();
         }
-
-        $data = json_decode($result, true);
-        $this->webhookResult = ($data['ok'] ?? false)
-            ? 'Webhook registrado: ' . ($data['description'] ?? 'OK')
-            : 'Error: ' . ($data['description'] ?? 'respuesta desconocida');
     }
 
     public function render()