Add debug logging for received data in whatsapp_webhook function

app.py

@@ -207,6 +207,7 @@ async def whatsapp_webhook(request: Request):
         raise HTTPException(403, "Unauthorized")
 
     data    = await request.json()
+    logging.debug(f"Received data: {data}")
     chat_id = data.get("senderData", {}).get("chatId")
     if chat_id != BotConfig.BOT_GROUP_CHAT or data.get("typeWebhook") != "incomingMessageReceived":
         return {"success": True}