fix (farm): 物种库维护

- 分页查询重复bug

yudao-module-farm/src/main/java/cn/iocoder/yudao/module/farm/service/specieslibrary/SpeciesLibraryServiceImpl.java

@@ -397,7 +397,7 @@ public class SpeciesLibraryServiceImpl implements SpeciesLibraryService {
         }
 
         // 构建完整的树结构用于查询
-        List<SpeciesTwoLevelTreeRespVO> fullTree = buildTree(allDicts);
+        List<SpeciesTwoLevelTreeRespVO> fullTree = buildTree(matchedDicts);
 
         Set<Long> resultIds = new HashSet<>();
         List<SpeciesTwoLevelTreeRespVO> result = new ArrayList<>();
@@ -419,7 +419,16 @@ public class SpeciesLibraryServiceImpl implements SpeciesLibraryService {
             }
         }
 
-        return result;
+        return result.stream()
+                .collect(Collectors.collectingAndThen(
+                        Collectors.toMap(
+                                SpeciesTwoLevelTreeRespVO::getName,
+                                item -> item,
+                                (existing, replacement) -> existing, // 保留第一个出现的
+                                LinkedHashMap::new
+                        ),
+                        map -> new ArrayList<>(map.values())
+                ));
     }
 
     /**