refactor: 清理不需要的代码文件，添加.gitignore，优化项目结构

src/main.py

@@ -16,6 +16,7 @@ from src.dialogue.dialogue_manager import DialogueManager
 from src.analytics.analytics_manager import AnalyticsManager
 from src.analytics.alert_system import AlertSystem
 from src.analytics.monitor_service import MonitorService
+from src.core.models import WorkOrder
 
 class TSPAssistant:
     """TSP助手主类"""
@@ -299,6 +300,34 @@ class TSPAssistant:
         except Exception as e:
             self.logger.error(f"获取预警统计失败: {e}")
             return {}
+
+    def get_workorders(self, limit: int = 100) -> List[Dict[str, Any]]:
+        """获取最近的工单列表（按创建时间倒序）"""
+        try:
+            with db_manager.get_session() as session:
+                q = session.query(WorkOrder).order_by(WorkOrder.created_at.desc())
+                if limit:
+                    q = q.limit(limit)
+                rows = q.all()
+                results: List[Dict[str, Any]] = []
+                for w in rows:
+                    results.append({
+                        "id": w.id,
+                        "order_id": w.order_id,
+                        "title": w.title,
+                        "description": w.description,
+                        "category": w.category,
+                        "priority": w.priority,
+                        "status": w.status,
+                        "created_at": w.created_at.isoformat() if w.created_at else None,
+                        "updated_at": w.updated_at.isoformat() if w.updated_at else None,
+                        "resolution": w.resolution,
+                        "satisfaction_score": w.satisfaction_score
+                    })
+                return results
+        except Exception as e:
+            self.logger.error(f"获取工单列表失败: {e}")
+            return []
     
     def get_system_health(self) -> Dict[str, Any]:
         """获取系统健康状态"""