feat(echarts): 添加波形图绘制功能支持

- 新增drawWavePic方法用于绘制波形图
- 实现null数据段压缩算法，确保图表性能优化
- 添加markLine和markArea功能显示null段边界标记
- 集成到WavePicComponent组件中支持瞬时和RMS波形图生成
- 修复RestTemplate对Hutool JSON对象的支持问题
- 优化WaveUtil工具类处理空值数据逻辑

pqs-common/common-web/src/main/java/com/njcn/web/utils/RestTemplateUtil.java

@@ -1,5 +1,8 @@
 package com.njcn.web.utils;
 
+import cn.hutool.json.JSONArray;
+import cn.hutool.json.JSONObject;
+import cn.hutool.json.JSONUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.*;
@@ -149,7 +152,8 @@ public class RestTemplateUtil {
      * @return ResponseEntity 响应对象封装类
      */
     public static <T> ResponseEntity<T> post(String url, Object requestBody, Class<T> responseType) {
-        return restTemplate.postForEntity(url, requestBody, responseType);
+        Object actualBody = convertHutoolJsonToStandard(requestBody);
+        return restTemplate.postForEntity(url, actualBody, responseType);
     }
 
     /**
@@ -162,7 +166,8 @@ public class RestTemplateUtil {
      * @return ResponseEntity 响应对象封装类
      */
     public static <T> ResponseEntity<T> post(String url, Object requestBody, Class<T> responseType, Object... uriVariables) {
-        return restTemplate.postForEntity(url, requestBody, responseType, uriVariables);
+        Object actualBody = convertHutoolJsonToStandard(requestBody);
+        return restTemplate.postForEntity(url, actualBody, responseType, uriVariables);
     }
 
     /**
@@ -175,7 +180,21 @@ public class RestTemplateUtil {
      * @return ResponseEntity 响应对象封装类
      */
     public static <T> ResponseEntity<T> post(String url, Object requestBody, Class<T> responseType, Map<String, ?> uriVariables) {
-        return restTemplate.postForEntity(url, requestBody, responseType, uriVariables);
+        Object actualBody = convertHutoolJsonToStandard(requestBody);
+        return restTemplate.postForEntity(url, actualBody, responseType, uriVariables);
+    }
+
+    private static Object convertHutoolJsonToStandard(Object requestBody) {
+        if (requestBody instanceof JSONObject || requestBody instanceof JSONArray) {
+            try {
+                com.fasterxml.jackson.databind.ObjectMapper objectMapper = new com.fasterxml.jackson.databind.ObjectMapper();
+                return objectMapper.readValue(JSONUtil.toJsonStr(requestBody), Object.class);
+            } catch (Exception e) {
+                log.warn("Hutool JSON转标准结构失败，尝试直接使用字符串", e);
+                return requestBody;
+            }
+        }
+        return requestBody;
     }
 
     /**