fix(接口测试): 修复case无法使用跟随API的缺陷

--bug=1013421 --user=王孝刚 [BUG] [接口测试]
github#13861在用例中添加文档结构断言，选择跟随API定义时，不能将API定义中的内容获取过来，导致断言不生效
https://www.tapd.cn/55049933/s/1164524

frontend/src/business/components/api/definition/components/assertion/ApiJsonPathSuggestButton.vue

@@ -1,6 +1,7 @@
 <template>
   <span class="json-path-suggest-button">
-    <el-button size="mini" type="primary" @click="$emit('open')" @click.stop :disabled="isReadOnly">
+    <el-button size="mini" type="primary" @click="$emit('open')" @click.stop :disabled="isReadOnly"
+               v-if="showSuggestButton">
       {{ openTip }}
     </el-button>
     <el-button size="mini" type="danger" @click="$emit('clear')" :disabled="isReadOnly">
@@ -12,7 +13,15 @@
 <script>
 export default {
   name: "ApiJsonPathSuggestButton",
-  props: ['openTip', 'clearTip','isReadOnly']
+  props: {
+    openTip: String,
+    clearTip: String,
+    isReadOnly: Boolean,
+    showSuggestButton: {
+      type: Boolean,
+      default: true,
+    }
+  }
 }
 </script>
 

frontend/src/business/components/api/definition/components/assertion/ScenarioAssertions.vue

@@ -18,6 +18,13 @@
     <el-card :draggable="true">
       <el-row>
         <span>{{ $t('api_test.request.assertions.description') }}</span>
+        <span style="float: right">
+        <api-json-path-suggest-button
+          :show-suggest-button="false"
+          :clear-tip="$t('api_test.request.assertions.json_path_clear')"
+          :isReadOnly="isReadOnly"
+          @clear="clearJson"/>
+      </span>
       </el-row>
       <div class="assertion-add" :draggable="draggable">
         <el-row :gutter="10">

frontend/src/business/components/api/definition/components/assertion/document/DocumentBody.vue

@@ -218,7 +218,7 @@ export default {
     },
     getDocument() {
       // 来自场景步骤，请求id为用例id
-      if (this.document && this.document.nodeType && this.document.nodeType === "scenario") {
+      if (this.document && this.document.nodeType && (this.document.nodeType === "scenario" || this.document.nodeType === "Case")) {
         this.getCase();
       } else {
         this.getAPI();

frontend/src/business/components/api/definition/components/case/ApiCaseItem.vue

@@ -311,6 +311,13 @@ export default {
     if (requireComponent != null && JSON.stringify(esbDefinition) != '{}' && JSON.stringify(esbDefinitionResponse) != '{}') {
       this.isXpack = true;
     }
+    if (this.apiCase.request && this.apiCase.request.hashTree && this.apiCase.request.hashTree.length > 0) {
+      this.apiCase.request.hashTree.forEach(item => {
+        if (item.type === 'Assertions') {
+          item.document.nodeType = 'Case'
+        }
+      })
+    }
     this.readonly = !hasPermission('PROJECT_API_DEFINITION:READ+EDIT_CASE');
     if (this.apiCase && this.apiCase.id) {
       this.showFollow = false;