feat: main.py spawns per-symbol TradingBot instances with shared RiskManager

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

main.py

@@ -1,7 +1,9 @@
 import asyncio
 from dotenv import load_dotenv
+from loguru import logger
 from src.config import Config
 from src.bot import TradingBot
+from src.risk_manager import RiskManager
 from src.logger_setup import setup_logger
 
 load_dotenv()
@@ -10,8 +12,15 @@ load_dotenv()
 async def main():
     setup_logger(log_level="INFO")
     config = Config()
-    bot = TradingBot(config)
-    await bot.run()
+    risk = RiskManager(config)
+
+    bots = []
+    for symbol in config.symbols:
+        bot = TradingBot(config, symbol=symbol, risk=risk)
+        bots.append(bot)
+
+    logger.info(f"멀티심볼 봇 시작: {config.symbols} ({len(bots)}개 인스턴스)")
+    await asyncio.gather(*[bot.run() for bot in bots])
 
 
 if __name__ == "__main__":