async refactor & docker deploy environment

handlers/add_group.py

@@ -1,15 +1,17 @@
 from telegram import Update
 from telegram.ext import ContextTypes
-from db import SessionLocal
+from db import AsyncSessionLocal
 from models import Group
 
 async def add_group(update: Update, context: ContextTypes.DEFAULT_TYPE):
-    args = context.args
+    args = context.args or []
+    if update.message is None:
+        return
     if len(args) < 2:
         await update.message.reply_text('Используйте: /add_group <название> <ссылка>')
         return
     name, link = args[0], args[1]
-    session = SessionLocal()
+    session = AsyncSessionLocal()
     group = Group(name=name, link=link)
     session.add(group)
     session.commit()