separate bot init and webhook setting

src/quickbot/main.py

@@ -41,6 +41,9 @@ async def default_lifespan(app: "QBotApp"):
     if app.lifespan_bot_init:
         await app.bot_init()
 
+    if app.lifespan_set_webhook:
+        await app.set_webhook()
+
     app.config.TELEGRAM_BOT_USERNAME = (await app.bot.get_me()).username
 
     logger.info("qbot app started")
@@ -77,6 +80,7 @@ class QBotApp(Generic[UserType, ConfigType], FastAPI):
         ] = None,
         lifespan: Lifespan[AppType] | None = None,
         lifespan_bot_init: bool = True,
+        lifespan_set_webhook: bool = True,
         allowed_updates: list[str] | None = None,
         **kwargs,
     ):
@@ -128,6 +132,7 @@ class QBotApp(Generic[UserType, ConfigType], FastAPI):
         self.bot_commands = dict[str, BotCommand]()
 
         self.lifespan_bot_init = lifespan_bot_init
+        self.lifespan_set_webhook = lifespan_set_webhook
 
         super().__init__(lifespan=default_lifespan, **kwargs)
 
@@ -169,6 +174,8 @@ class QBotApp(Generic[UserType, ConfigType], FastAPI):
                 language_code=None if locale == "default" else locale,
             )
 
+    
+    async def set_webhook(self):
         await self.bot.set_webhook(
             url=f"{self.config.TELEGRAM_WEBHOOK_URL}/telegram/webhook",
             drop_pending_updates=True,
@@ -176,6 +183,7 @@ class QBotApp(Generic[UserType, ConfigType], FastAPI):
             secret_token=self.config.TELEGRAM_WEBHOOK_AUTH_KEY,
         )
 
+    
     async def show_form(
         self,
         app_state: State,