Feature/actr forget (#55)

* [changes]Request to remove 'config_id' has been received.

* [add]Add the access history record table

* [changes]Request to remove 'config_id' has been received.

* [add]Add the access history record table

* [add]Obtain the record of the forgetting trend

* [changes]Based on the AI's suggestion, make the necessary modifications.

api/app/repositories/forgetting_cycle_history_repository.py

@@ -0,0 +1,105 @@
+"""
+遗忘周期历史记录仓储
+
+提供遗忘周期历史记录的数据访问操作。
+"""
+
+from typing import List, Optional
+from datetime import datetime, timedelta
+from sqlalchemy.orm import Session
+from sqlalchemy import desc, and_
+
+from app.models.forgetting_cycle_history_model import ForgettingCycleHistory
+
+
+class ForgettingCycleHistoryRepository:
+    """遗忘周期历史记录仓储类"""
+    
+    def create(
+        self,
+        db: Session,
+        end_user_id: str,
+        execution_time: datetime,
+        merged_count: int,
+        failed_count: int,
+        average_activation_value: Optional[float],
+        total_nodes: int,
+        low_activation_nodes: int,
+        duration_seconds: float,
+        trigger_type: str = "manual"
+    ) -> ForgettingCycleHistory:
+        """
+        创建历史记录
+        
+        Args:
+            db: 数据库会话
+            end_user_id: 终端用户ID
+            execution_time: 执行时间
+            merged_count: 融合节点数
+            failed_count: 失败节点数
+            average_activation_value: 平均激活值
+            total_nodes: 总节点数
+            low_activation_nodes: 低激活值节点数
+            duration_seconds: 执行耗时
+            trigger_type: 触发类型
+        
+        Returns:
+            ForgettingCycleHistory: 创建的历史记录
+        """
+        history = ForgettingCycleHistory(
+            end_user_id=end_user_id,
+            execution_time=execution_time,
+            merged_count=merged_count,
+            failed_count=failed_count,
+            average_activation_value=average_activation_value,
+            total_nodes=total_nodes,
+            low_activation_nodes=low_activation_nodes,
+            duration_seconds=duration_seconds,
+            trigger_type=trigger_type
+        )
+        
+        db.add(history)
+        db.commit()
+        db.refresh(history)
+        
+        return history
+    
+    def get_recent_by_end_user(
+        self,
+        db: Session,
+        end_user_id: str
+    ) -> List[ForgettingCycleHistory]:
+        """
+        获取指定终端用户的所有历史记录（按时间降序排列）
+        
+        注意：此方法返回所有历史记录，调用方需要自行处理日期分组和数量限制。
+        
+        Args:
+            db: 数据库会话
+            end_user_id: 终端用户ID
+        
+        Returns:
+            List[ForgettingCycleHistory]: 历史记录列表，按时间降序排列
+        """
+        return db.query(ForgettingCycleHistory).filter(
+            ForgettingCycleHistory.end_user_id == end_user_id
+        ).order_by(ForgettingCycleHistory.execution_time.desc()).all()
+    
+    def get_latest_by_end_user(
+        self,
+        db: Session,
+        end_user_id: str
+    ) -> Optional[ForgettingCycleHistory]:
+        """
+        获取指定终端用户的最新历史记录
+        
+        Args:
+            db: 数据库会话
+            end_user_id: 终端用户ID
+        
+        Returns:
+            Optional[ForgettingCycleHistory]: 最新历史记录
+        """
+        return db.query(ForgettingCycleHistory).filter(
+            ForgettingCycleHistory.end_user_id == end_user_id
+        ).order_by(desc(ForgettingCycleHistory.execution_time)).first()