turnero: fallback a puerto 8080 si SigWeb no responde en 47289

Intenta localhost:47289 primero; si falla prueba localhost:8080.
Funciona para instalaciones con puerto no estándar sin cambiar Oracle.

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

ver_formulario_enviado.php

@@ -2528,9 +2528,11 @@ document.querySelectorAll('.turnero-firma-item').forEach(function(widget) {
 <script>
 // ── Topaz SigWeb ────────────────────────────────────────────────────
 const topaz = (() => {
-    const SIGWEB_URL = 'http://localhost:47289/SigWeb/SigWebTablet.js';
+    const SIGWEB_URLS = [
+        'http://localhost:47289/SigWeb/SigWebTablet.js',
+        'http://localhost:8080/SigWeb/SigWebTablet.js',
+    ];
     let _loaded = false, _ctx = null, _target = null, _poll = null;
-    // _target: { type: 'turnero'|'pro', canvas: CanvasElement, onAccept: fn }
 
     function _call(fn, ...args) {
         if (_ctx && typeof _ctx[fn] === 'function') return _ctx[fn](...args);
@@ -2539,17 +2541,22 @@ const topaz = (() => {
         throw new Error('SigWeb: ' + fn + ' no encontrado');
     }
 
-    function _loadScript() {
-        if (_loaded) return Promise.resolve(true);
+    function _tryLoad(urls) {
+        if (!urls.length) return Promise.resolve(false);
         return new Promise(res => {
             const s = document.createElement('script');
-            s.src = SIGWEB_URL;
+            s.src = urls[0];
             s.onload  = () => { _loaded = true; res(true); };
-            s.onerror = () => res(false);
+            s.onerror = () => _tryLoad(urls.slice(1)).then(res);
             document.head.appendChild(s);
         });
     }
 
+    function _loadScript() {
+        if (_loaded) return Promise.resolve(true);
+        return _tryLoad(SIGWEB_URLS);
+    }
+
     // Detectar disponibilidad al cargar; ocultar botones si no hay pad
     _loadScript().then(ok => {
         if (!ok) document.querySelectorAll('.btn-topaz').forEach(b => b.style.display = 'none');