fix: correct indentation and remove trailing whitespace in stage.py

Author: Luna-channel

astrbot/core/pipeline/result_decorate/stage.py

@@ -400,17 +400,17 @@ async def process(
                     )
                     if len(result.chain) > 1 and isinstance(result.chain[1], Plain):
                         result.chain[1].text = "\n" + result.chain[1].text
-                        
-        # 引用回复
-        if self.reply_with_quote:
-            is_private = event.get_message_type() == MessageType.FRIEND_MESSAGE
-            should_quote = (
-                self.reply_with_quote_scope == "all"
-                or (self.reply_with_quote_scope == "private_only" and is_private)
-                or (self.reply_with_quote_scope == "group_only" and not is_private)
-            )
-            if should_quote and not any(
-                isinstance(item, File) for item in result.chain
-            ):
-                result.chain.insert(0, Reply(id=event.message_obj.message_id))
+
+                # 引用回复
+                if self.reply_with_quote:
+                    is_private = event.get_message_type() == MessageType.FRIEND_MESSAGE
+                    should_quote = (
+                        self.reply_with_quote_scope == "all"
+                        or (self.reply_with_quote_scope == "private_only" and is_private)
+                        or (self.reply_with_quote_scope == "group_only" and not is_private)
+                    )
+                    if should_quote and not any(
+                        isinstance(item, File) for item in result.chain
+                    ):
+                        result.chain.insert(0, Reply(id=event.message_obj.message_id))