Fix /id command in private chats

mautrix_telegram/abstract_user.py

@@ -570,7 +570,8 @@ class AbstractUser(ABC):
         if self.is_relaybot:
             if update.is_private:
                 if not self.config["bridge.relaybot.private_chat.invite"]:
-                    self.log.debug(f"Ignoring private message to bot from {sender.id}")
+                    if sender:
+                        self.log.debug(f"Ignoring private message to bot from {sender.id}")
                     return
             elif not portal.mxid and self.config["bridge.relaybot.ignore_unbridged_group_chat"]:
                 self.log.debug(

mautrix_telegram/bot.py

@@ -225,7 +225,7 @@ class Bot(AbstractUser):
         elif isinstance(message.to_id, PeerChat):
             return reply(str(-message.to_id.chat_id))
         elif isinstance(message.to_id, PeerUser):
-            return reply(f"Your user ID is {message.from_id}.")
+            return reply(f"Your user ID is {message.to_id.user_id}.")
         else:
             return reply("Failed to find chat ID.")