fix：仿真参数库，同名参数对象校验

data/src/main/java/com/sdm/data/service/impl/SimulationParameterLibraryServiceImpl.java

@@ -139,6 +139,16 @@ public class SimulationParameterLibraryServiceImpl extends ServiceImpl<Simulatio
     @Transactional(rollbackFor = Exception.class)
     public SdmResponse addLibraryCategoryObject(SimulationParameterLibraryCategoryObjectReq req) {
         try {
+            // 同名校验：检查同一参数库、同一分类下是否存在同名的参数对象
+            Long existingCount = simulationParameterLibraryCategoryObjectService.lambdaQuery()
+                    .eq(SimulationParameterLibraryCategoryObject::getParameterLibraryId, req.getParameterLibraryId())
+                    .eq(SimulationParameterLibraryCategoryObject::getParameterLibraryCategoryId, req.getParameterLibraryCategoryId())
+                    .eq(SimulationParameterLibraryCategoryObject::getParameterLibraryCategoryObjectName, req.getParameterLibraryCategoryObjectName())
+                    .count();
+            if (existingCount > 0) {
+                return SdmResponse.failed("该分类下已存在同名参数对象：" + req.getParameterLibraryCategoryObjectName());
+            }
+            
             MultipartFile inputFile = req.getFile();
             ObjectMapper objectMapper = new ObjectMapper();
             MultipartFile fileToUpload;