导出优化，上传端代码

app/services/settlement_data.py

@@ -20,6 +20,12 @@ class SettlementDataService(BaseService[SettlementData]):
         """根据观测点ID获取沉降数据"""
         return self.get_by_field(db, "point_id", point_id)
 
+    def get_by_point_ids(self, db: Session, point_ids: List[str]) -> List[SettlementData]:
+        """根据观测点ID列表批量获取沉降数据"""
+        if not point_ids:
+            return []
+        return db.query(SettlementData).filter(SettlementData.point_id.in_(point_ids)).all()
+
     def get_by_nyid(self, db: Session, nyid: str) -> List[SettlementData]:
         """根据期数ID获取沉降数据"""
         return self.get_by_field(db, "NYID", nyid)