fix: 懒加载单例以修复环境变量加载问题

src/chat/normal_chat/normal_prompt.py

@@ -1,18 +1,18 @@
+from src.chat.focus_chat.expressors.exprssion_learner import get_expression_learner
 from src.config.config import global_config
 from src.common.logger import get_logger
-from src.individuality.individuality import individuality
+from src.individuality.individuality import get_individuality
 from src.chat.utils.prompt_builder import Prompt, global_prompt_manager
 from src.chat.utils.chat_message_builder import build_readable_messages, get_raw_msg_before_timestamp_with_chat
-from src.person_info.relationship_manager import relationship_manager
 import time
 from src.chat.utils.utils import get_recent_group_speaker
 from src.manager.mood_manager import mood_manager
 from src.chat.memory_system.Hippocampus import hippocampus_manager
 from src.chat.knowledge.knowledge_lib import qa_manager
-from src.chat.focus_chat.expressors.exprssion_learner import expression_learner
 import random
 import re
 
+from src.person_info.relationship_manager import get_relationship_manager
 
 logger = get_logger("prompt")
 
@@ -96,7 +96,7 @@ class PromptBuilder:
         enable_planner: bool = False,
         available_actions=None,
     ) -> str:
-        prompt_personality = individuality.get_prompt(x_person=2, level=2)
+        prompt_personality = get_individuality().get_prompt(x_person=2, level=2)
         is_group_chat = bool(chat_stream.group_info)
 
         who_chat_in_group = []
@@ -114,10 +114,11 @@ class PromptBuilder:
         relation_prompt = ""
         if global_config.relationship.enable_relationship:
             for person in who_chat_in_group:
+                relationship_manager = get_relationship_manager()
                 relation_prompt += await relationship_manager.build_relationship_info(person)
 
         mood_prompt = mood_manager.get_mood_prompt()
-
+        expression_learner = get_expression_learner()
         (
             learnt_style_expressions,
             learnt_grammar_expressions,