refactor: project architecture refactor, container splitting

backend/main.py

@@ -0,0 +1,36 @@
+import asyncio
+import logging
+import os
+import sys
+
+from dotenv import load_dotenv
+from startup_banner import print_startup_banner
+
+from bot.main_bot import run_bot
+from config.settings import get_settings
+
+
+def _resolve_log_level(value: str) -> int:
+    return getattr(logging, value.upper(), logging.INFO)
+
+
+async def main():
+    settings = get_settings()
+    await run_bot(settings, run_web=True, run_tariff_worker=False)
+
+
+if __name__ == "__main__":
+    load_dotenv()
+    print_startup_banner("bot")
+    logging.basicConfig(
+        level=_resolve_log_level(os.getenv("LOG_LEVEL", "INFO")),
+        stream=sys.stdout,
+        format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+    )
+    try:
+        asyncio.run(main())
+    except (KeyboardInterrupt, SystemExit):
+        logging.info("Bot stopped manually")
+    except Exception as e_global:
+        logging.critical(f"Global unhandled exception in main: {e_global}", exc_info=True)
+        sys.exit(1)