fix: correct operator precedence in text height estimation

Author: fllesser

src/nonebot_plugin_parser/renders/common.py

@@ -229,7 +229,7 @@ def _ensure_height_enough(self, ctx: RenderContext, needed_height: int) -> None:
 
     def _estimate_text_height(self, text: str, font: FontInfo, content_width: int) -> int:
         """估算文本高度（考虑换行符）"""
-        return text.count("\n") + 1 + (len(text) * font.cjk_width // content_width) * font.line_height
+        return (text.count("\n") + 1 + len(text) * font.cjk_width // content_width) * font.line_height
 
     def _estimate_height(self, result: ParseResult, content_width: int) -> int:
         """估算画布高度"""

src/nonebot_plugin_parser/utils.py

@@ -15,10 +15,6 @@
 
 
 class LimitedSizeDict(OrderedDict[K, V]):
-    """
-    定长字典
-    """
-
     def __init__(self, *args, max_size=20, **kwargs):
         self.max_size = max_size
         super().__init__(*args, **kwargs)