fix: 懒加载单例以修复环境变量加载问题

src/chat/utils/chat_message_builder.py

@@ -4,7 +4,7 @@ import time  # 导入 time 模块以获取当前时间
 import random
 import re
 from src.common.message_repository import find_messages, count_messages
-from src.person_info.person_info import person_info_manager, PersonInfoManager
+from src.person_info.person_info import PersonInfoManager, get_person_info_manager
 from src.chat.utils.utils import translate_timestamp_to_human_readable
 from rich.traceback import install
 from src.common.database.database_model import ActionRecords
@@ -220,6 +220,7 @@ def _build_readable_messages_internal(
             continue
 
         person_id = PersonInfoManager.get_person_id(platform, user_id)
+        person_info_manager = get_person_info_manager()
         # 根据 replace_bot_name 参数决定是否替换机器人名称
         if replace_bot_name and user_id == global_config.bot.qq_account:
             person_name = f"{global_config.bot.nickname}(你)"

src/chat/utils/utils_image.py

@@ -362,7 +362,15 @@ class ImageManager:
 
 
 # 创建全局单例
-image_manager = ImageManager()
+image_manager = None
+
+
+def get_image_manager() -> ImageManager:
+    """获取全局图片管理器单例"""
+    global image_manager
+    if image_manager is None:
+        image_manager = ImageManager()
+    return image_manager
 
 
 def image_path_to_base64(image_path: str) -> str: