fix(05-01): switch Show Menu to native Telegram node

HTTP Request node with $credentials reference was causing 404 errors.
Native Telegram node handles credentials more reliably for static menus.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

n8n-workflow.json

@@ -2071,17 +2071,32 @@
     },
     {
       "parameters": {
-        "method": "POST",
+        "resource": "message",
-        "url": "=https://api.telegram.org/bot{{ $credentials.telegramApi.accessToken }}/sendMessage",
+        "operation": "sendMessage",
-        "sendBody": true,
+        "chatId": "={{ $json.message.chat.id }}",
-        "specifyBody": "json",
+        "text": "Use buttons below or type commands:",
-        "jsonBody": "={{ JSON.stringify({ \"chat_id\": $json.message.chat.id, \"text\": \"Use buttons below or type commands:\", \"parse_mode\": \"HTML\", \"reply_markup\": { \"keyboard\": [[{\"text\": \"Status\"}], [{\"text\": \"Start\"}, {\"text\": \"Stop\"}], [{\"text\": \"Restart\"}, {\"text\": \"Update\"}], [{\"text\": \"Logs\"}]], \"is_persistent\": true, \"resize_keyboard\": true, \"one_time_keyboard\": false } }) }}",
+        "additionalFields": {
-        "options": {}
+          "parse_mode": "HTML",
+          "replyMarkup": "replyKeyboard",
+          "replyKeyboard": {
+            "rows": [
+              { "row": { "buttons": [{ "text": "Status" }] } },
+              { "row": { "buttons": [{ "text": "Start" }, { "text": "Stop" }] } },
+              { "row": { "buttons": [{ "text": "Restart" }, { "text": "Update" }] } },
+              { "row": { "buttons": [{ "text": "Logs" }] } }
+            ]
+          },
+          "replyKeyboardOptions": {
+            "resize_keyboard": true,
+            "one_time_keyboard": false,
+            "is_persistent": true
+          }
+        }
       },
-      "id": "http-show-menu",
+      "id": "telegram-show-menu",
       "name": "Show Menu",
-      "type": "n8n-nodes-base.httpRequest",
+      "type": "n8n-nodes-base.telegram",
-      "typeVersion": 4.2,
+      "typeVersion": 1.2,
       "position": [
         1120,
         300