feat: add Telegram bot for manual trade commands

- Added telegram_command_bot.py with slash commands (/buySOL, /sellBTC, etc)
- Docker compose setup with DNS configuration
- Sends trades as plain text to n8n webhook (same format as TradingView)
- Improved Telegram success message formatting
- Only responds to authorized chat ID (579304651)
- Commands: /buySOL, /sellSOL, /buyBTC, /sellBTC, /buyETH, /sellETH

telegram_command_bot.py

@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+"""
+Telegram Trade Bot - SECURE Command-based
+Only responds to YOUR commands in YOUR chat
+"""
+import os
+import requests
+from telegram import Update
+from telegram.ext import Application, CommandHandler, ContextTypes
+
+# Configuration
+TELEGRAM_BOT_TOKEN = os.getenv('TELEGRAM_BOT_TOKEN')
+N8N_WEBHOOK_URL = os.getenv('N8N_WEBHOOK_URL')
+ALLOWED_CHAT_ID = int(os.getenv('TELEGRAM_CHAT_ID', '579304651'))
+
+async def trade_command(update: Update, context: ContextTypes.DEFAULT_TYPE):
+    """Handle trade commands like /buySOL, /sellBTC, etc."""
+    
+    # Only process from YOUR chat
+    if update.message.chat_id != ALLOWED_CHAT_ID:
+        await update.message.reply_text("❌ Unauthorized")
+        return
+    
+    # Extract command (remove the /)
+    command = update.message.text[1:].lower()  # e.g., "buysol"
+    
+    # Parse action and symbol
+    if command.startswith('buy'):
+        action = 'buy'
+        symbol = command[3:]  # e.g., "sol"
+    elif command.startswith('sell'):
+        action = 'sell'
+        symbol = command[4:]  # e.g., "btc"
+    else:
+        await update.message.reply_text("❓ Unknown command")
+        return
+    
+    message = f"{action} {symbol}"
+    print(f"📨 Command: {message}", flush=True)
+    
+    # Forward to n8n webhook - send as plain text body like TradingView does
+    try:
+        print(f"📤 Sending: {message}", flush=True)
+        
+        response = requests.post(
+            N8N_WEBHOOK_URL,
+            data=message,  # Plain text, not JSON
+            headers={'Content-Type': 'text/plain'},
+            timeout=10
+        )
+        
+        print(f"📥 Response status: {response.status_code}", flush=True)
+        print(f"📥 Response body: {response.text[:200]}", flush=True)
+        
+        if response.ok:
+            print(f"✅ Sent: {message}", flush=True)
+            await update.message.reply_text(
+                f"🤖 {action.upper()} {symbol.upper()}\n"
+                f"✅ Trade command sent!"
+            )
+        else:
+            print(f"❌ Error: {response.status_code}", flush=True)
+            await update.message.reply_text(f"❌ Error: {response.status_code}")
+            
+    except Exception as e:
+        print(f"❌ Error: {e}", flush=True)
+        await update.message.reply_text(f"❌ Error: {str(e)}")
+
+def main():
+    """Start the bot"""
+    
+    print(f"🚀 Telegram Trade Bot Starting...", flush=True)
+    print(f"📱 Allowed Chat ID: {ALLOWED_CHAT_ID}", flush=True)
+    print(f"🔗 Webhook: {N8N_WEBHOOK_URL}", flush=True)
+    print(f"\n✅ Commands:", flush=True)
+    print(f"   /buySOL, /sellSOL", flush=True)
+    print(f"   /buyBTC, /sellBTC", flush=True)
+    print(f"   /buyETH, /sellETH", flush=True)
+    
+    # Create application
+    application = Application.builder().token(TELEGRAM_BOT_TOKEN).build()
+    
+    # Add command handlers
+    application.add_handler(CommandHandler("buySOL", trade_command))
+    application.add_handler(CommandHandler("sellSOL", trade_command))
+    application.add_handler(CommandHandler("buyBTC", trade_command))
+    application.add_handler(CommandHandler("sellBTC", trade_command))
+    application.add_handler(CommandHandler("buyETH", trade_command))
+    application.add_handler(CommandHandler("sellETH", trade_command))
+    
+    # Start polling
+    print("\n🤖 Bot ready! Send commands to your Telegram.\n", flush=True)
+    application.run_polling(allowed_updates=Update.ALL_TYPES)
+
+if __name__ == '__main__':
+    main()