fix：优化人格prompt提取

src/individuality/identity.py

@@ -1,5 +1,6 @@
 from dataclasses import dataclass
 from typing import List
+import random
 
 @dataclass
 class Identity:
@@ -75,6 +76,27 @@ class Identity:
         instance.appearance = appearance
         return instance
     
+    def get_prompt(self,x_person,level):
+        """
+        获取身份特征的prompt
+        """
+        if x_person == 2:
+            prompt_identity = "你"
+        elif x_person == 1:
+            prompt_identity = "我"
+        else:
+            prompt_identity = "他"
+            
+        if level == 1:
+            identity_detail = self.identity_detail
+            random.shuffle(identity_detail)
+            prompt_identity += identity_detail[0]
+        elif level == 2:
+            for detail in identity_detail:
+                prompt_identity += f",{detail}"
+        prompt_identity += "。"
+        return prompt_identity
+    
     def to_dict(self) -> dict:
         """将身份特征转换为字典格式"""
         return {