fix: corregir URL de upload binario a graph.facebook.com/{version}/{session_id}

api/upload_whatsapp_profile_photo.php

@@ -99,11 +99,11 @@ try {
     $uploadSessionId = $sessionData['id'];
 
     // ── Paso 2: Subir el archivo binario ──────────────────────────────────────
-    // POST https://rupload.facebook.com/whatsapp-business-profile/{session_id}
+    // POST https://graph.facebook.com/{version}/{upload_session_id}
     $fileContent = file_get_contents($file['tmp_name']);
     if ($fileContent === false) throw new Exception("No se pudo leer el archivo temporal");
 
-    $uploadUrl = "https://rupload.facebook.com/whatsapp-business-profile/{$uploadSessionId}";
+    $uploadUrl = "https://graph.facebook.com/{$apiVersion}/{$uploadSessionId}";
 
     $ch2 = curl_init();
     curl_setopt_array($ch2, [