Add NFC enable/disable support; update devices, Sonoff, and Tuya

app/templates/tuya/auth_settings.html

@@ -65,6 +65,8 @@
           <i class="bi bi-qr-code me-1"></i>Generate QR Code
         </button>
 
+        <div id="qr-error-area"></div>
+
         <div id="qr-area" class="text-center d-none">
           <div id="qr-canvas" class="d-inline-block p-2 bg-white rounded mb-3"></div>
           <p class="text-muted small mb-1" id="qr-instruction">
@@ -114,6 +116,7 @@
   btnCancel.addEventListener('click', cancelQr);
 
   function startQr() {
+    document.getElementById('qr-error-area').innerHTML = '';
     const code = inputCode.value.trim();
     if (!code) {
       inputCode.focus();
@@ -205,10 +208,12 @@
   }
 
   function showError(msg) {
+    const area = document.getElementById('qr-error-area');
+    area.innerHTML = '';
     const el = document.createElement('div');
     el.className = 'alert alert-danger py-2 mt-2';
     el.textContent = msg;
-    qrCanvas.after(el);
+    area.appendChild(el);
   }
 })();
 </script>