feat: Add address validation and initial user instructions

src/bot/telegram-bot.ts

@@ -56,9 +56,24 @@ export class TelegramBot {
 
     this.bot.on('text', async (ctx) => {
       const chatId = ctx.chat.id;
-      const userMessage = ctx.message.text;
+      const userMessage = ctx.message.text.trim();
       console.log(`Received message from chat ${chatId}: ${userMessage}`);
 
+      const isAptosAddress = /^0x[a-fA-F0-9]{64}$/.test(userMessage);
+
+      if (!isAptosAddress) {
+        await ctx.reply(`For now, I'm limited to preparing a personalized Telegram report with recommendations. To make this as accurate and helpful as possible, I'll need your Aptos address so I can access the latest information about your portfolio.
+
+Could you please share your Aptos address? Here's what I'll do once I receive it:
+
+1. Collect data on your tokens, pools, yields, and liquidity from Liquidswap.
+2. Analyze your portfolio.
+3. Prepare tailored recommendations and format them into a Telegram post with emojis and detailed explanations.
+
+Looking forward to helping you! 🚀`);
+        return;
+      }
+
       try {
         const userPipeline: Pipeline = {
           description: 'Crypto wallet analyzer for Liquidswap',