feat:导出面板动态编写一半

backend/db/models.py

@@ -81,6 +81,39 @@ class MultiAgentTask(Base):
         }
 
 
+class ExportRecord(Base):
+    """导出记录模型"""
+    __tablename__ = "export_records"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    task_id = Column(String(64), nullable=False, index=True)          # 关联任务ID
+    user_id = Column(String(64), nullable=False, index=True)          # 用户ID
+    export_type = Column(String(32), nullable=False)                  # 导出类型: doc/markdown/mindmap/infographic/excel/ppt
+    file_name = Column(String(256), nullable=False)                   # 文件名
+    file_path = Column(String(512), nullable=False)                    # 服务器存储路径
+    file_url = Column(String(512))                                     # 访问URL
+    file_size = Column(Integer, default=0)                            # 文件大小(字节)
+    created_at = Column(DateTime(timezone=True), default=utc_now)
+
+    __table_args__ = (
+        Index("idx_export_records_task_user", "task_id", "user_id"),
+    )
+
+    def to_dict(self) -> dict:
+        """转换为字典"""
+        return {
+            "id": self.id,
+            "task_id": self.task_id,
+            "user_id": self.user_id,
+            "export_type": self.export_type,
+            "file_name": self.file_name,
+            "file_path": self.file_path,
+            "file_url": self.file_url,
+            "file_size": self.file_size,
+            "created_at": self.created_at.isoformat() if self.created_at else None,
+        }
+
+
 class UserAgent(Base):
     """用户保存的智能体配置模型 (可选表)"""
     __tablename__ = "user_agents"