修复bug

src/views/pms/PigBatchManagementView.vue

@@ -181,7 +181,7 @@ export default {
       const assembledBatches = Array.from(batchMap.values());
       assembledBatches.forEach(batch => {
       // Use currentTotalQuantity and currentTotalPigsInPens directly from the batch object
-        batch.unassigned_pig_count = (batch.currentTotalQuantity || 0) - (batch.currentTotalPigsInPens || 0);
+        batch.unassigned_pig_count = (batch.current_total_quantity || 0) - (batch.current_total_pigs_in_pens || 0);
       });
       return assembledBatches;
     },