fix(userbot): drop stale media sessions and survive download timeouts

backend/src/userbot/modules/media/downloader.py

@@ -1,4 +1,3 @@
-from io import BytesIO
 from typing import Any
 
 from pyrogram import Client
@@ -6,6 +5,8 @@ from pyrogram.types import Message
 
 from userbot.modules.capture import repository
 from userbot.modules.capture.context import CaptureContext
+from userbot.modules.download import download_bytes
+from utils.logging import logger
 from utils.policy.models import CaptureToggles
 
 _MEDIA_ATTRS = (
@@ -80,9 +81,14 @@ async def capture_media(  # noqa: PLR0913
             downloaded = True
         else:
             target = message if getattr(message, kind or "", None) is obj else obj
-            buffer = await client.download_media(target, in_memory=True)
-            if isinstance(buffer, BytesIO):
-                data = buffer.getvalue()
+            try:
+                data = await download_bytes(client, target)
+            except TimeoutError:
+                logger.warning(
+                    f"[yellow]Media download timed out for {chat_id}/{message_id}.[/]"
+                )
+                data = None
+            if data is not None:
                 storage_key = ctx.storage.put(data)
                 file_size = len(data)
                 downloaded = True