feat：增加了工作记忆

src/chat/focus_chat/info/self_info.py

@@ -0,0 +1,41 @@
+from typing import Dict, Any
+from dataclasses import dataclass, field
+from .info_base import InfoBase
+
+
+@dataclass
+class SelfInfo(InfoBase):
+    """思维信息类
+
+    用于存储和管理当前思维状态的信息。
+
+    Attributes:
+        type (str): 信息类型标识符，默认为 "mind"
+        data (Dict[str, Any]): 包含 current_mind 的数据字典
+    """
+
+    type: str = "self"
+
+    def get_self_info(self) -> str:
+        """获取当前思维状态
+
+        Returns:
+            str: 当前思维状态
+        """
+        return self.get_info("self_info") or ""
+
+    def set_self_info(self, self_info: str) -> None:
+        """设置当前思维状态
+
+        Args:
+            self_info: 要设置的思维状态
+        """
+        self.data["self_info"] = self_info
+        
+    def get_processed_info(self) -> str:
+        """获取处理后的信息
+
+        Returns:
+            str: 处理后的信息
+        """
+        return self.get_self_info()