perf(utils): 优化字典工具类性能并移除重复依赖

- 在DictUtils中添加类型检查避免不必要的序列化反序列化操作
- 移除pom.xml中的重复jackson-databind依赖配置
- 提升字典数据获取的执行效率

healthlink-his-server/core-common/pom.xml

@@ -115,10 +115,6 @@
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
         </dependency>
-        <dependency>
-            <groupId>tools.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-        </dependency>
 
         <!-- 阿里JSON解析器 -->
         <!-- io常用工具类 -->

healthlink-his-server/core-common/src/main/java/com/core/common/utils/DictUtils.java

@@ -43,6 +43,12 @@ public class DictUtils {
         if (StringUtils.isNull(cached)) {
             return null;
         }
+        // 如果已经是目标类型，直接返回
+        if (cached instanceof List && ((List<?>) cached).stream().allMatch(e -> e instanceof SysDictData)) {
+            @SuppressWarnings("unchecked")
+            List<SysDictData> result = (List<SysDictData>) cached;
+            return result;
+        }
         com.fasterxml.jackson.core.type.TypeReference<List<SysDictData>> typeRef =
                 new com.fasterxml.jackson.core.type.TypeReference<List<SysDictData>>() {};
         ObjectMapper mapper = new ObjectMapper()