fix(batch): convert Send Batch Confirmation to native Telegram node

HTTP Request node with credential access via URL expression was
failing. Native Telegram node handles credentials internally and
is more reliable for this use case.

n8n-workflow.json

@@ -718,17 +718,19 @@
     },
     {
       "parameters": {
-        "method": "POST",
-        "url": "=https://api.telegram.org/bot{{ $credentials.telegramApi.accessToken }}/sendMessage",
-        "sendBody": true,
-        "specifyBody": "json",
-        "jsonBody": "={{ JSON.stringify({ chat_id: $json.chat_id, text: $json.text, parse_mode: $json.parse_mode, reply_markup: $json.reply_markup }) }}",
-        "options": {}
+        "resource": "message",
+        "operation": "sendMessage",
+        "chatId": "={{ $json.chat_id }}",
+        "text": "={{ $json.text }}",
+        "additionalFields": {
+          "parse_mode": "HTML",
+          "reply_markup": "={{ JSON.stringify($json.reply_markup) }}"
+        }
       },
-      "id": "http-send-batch-confirm",
+      "id": "telegram-send-batch-confirm",
       "name": "Send Batch Confirmation",
-      "type": "n8n-nodes-base.httpRequest",
-      "typeVersion": 4.2,
+      "type": "n8n-nodes-base.telegram",
+      "typeVersion": 1.2,
       "position": [
         2000,
         500