Fix: Check presence of `#pass` in file caption.

bot/plugins/files.py

@@ -53,6 +53,9 @@ async def user_file_handler(event: NewMessage.Event | Message):
 @TelegramBot.on(NewMessage(incoming=True, func=filter_files, forwards=False))
 @verify_user()
 async def channel_file_handler(event: NewMessage.Event | Message):
+    if event.raw_text and '#pass' in event.raw_text:
+        return
+    
     secret_code = token_hex(Telegram.SECRET_CODE_LENGTH)
     event.message.text = f"`{secret_code}`"
     message = await send_message(event.message)