db creation fix

alembic/env.py

@@ -9,6 +9,10 @@ import os
 # this is the Alembic Config object, which provides
 # access to the values within the .ini file in use.
 config = context.config
+import os
+db_url = os.getenv("DATABASE_URL", "sqlite+aiosqlite:///db/bot.db")
+db_url_sync = db_url.replace("sqlite+aiosqlite", "sqlite")  # Alembic нужен sync-драйвер
+config.set_main_option("sqlalchemy.url", db_url_sync)
 
 # Interpret the config file for Python logging.
 # This line sets up loggers basically.