feat(flow): 优化流程试运行功能

- 添加试运行准备状态指示器
- 在试运行按钮上增加加载状态和禁用逻辑
- 实现试运行前自动保存草稿功能
- 为保存草稿功能添加可选的成功消息参数
- 防止试运行和保存操作同时执行的冲突处理

src/views/flow/index.vue

@@ -39,7 +39,12 @@
             <el-button :type="groupSelectionPending ? 'primary' : 'default'" @click="group">
               <el-icon><CollectionTag /></el-icon>{{ groupSelectionPending ? "取消分组" : "分组" }}
             </el-button>
-            <el-button v-if="flowState !== 'testRunning'" @click="testRun">
+            <el-button
+              v-if="flowState !== 'testRunning'"
+              :loading="trialPreparing"
+              :disabled="draftSaving"
+              @click="testRun"
+            >
               <el-icon><VideoPlay /></el-icon>试运行
             </el-button>
             <el-button v-if="flowState === 'testRunning'" @click="flowPauseFn">
@@ -831,6 +836,7 @@ const versionLoading = ref(false);
 const versionList = ref([]);
 const versionPreviewMode = ref(false);
 const previewingVersionNo = ref(null);
+const trialPreparing = ref(false);
 let draftBeforeVersionPreview = null;
 let oldFlowDataBeforeVersionPreview = null;
 let disableFormBeforeVersionPreview = false;
@@ -846,6 +852,8 @@ const flowInfoData = ref({
  * 试运行
  */
 const testRun = async () => {
+  if (trialPreparing.value || draftSaving.value) return;
+
   // 1、验证画布内所有的表单通过验证
   const { nodes, edges } = lf.getGraphData();
 
@@ -882,7 +890,14 @@ const testRun = async () => {
     return;
   }
 
-  isOpen.value = true;
+  trialPreparing.value = true;
+  try {
+    const saved = await saveDraft({ successMessage: "已自动保存当前草稿" });
+    if (!saved) return;
+    isOpen.value = true;
+  } finally {
+    trialPreparing.value = false;
+  }
 };
 
 // 流程暂停
@@ -1459,7 +1474,7 @@ const getSavableFlowData = () => {
   return sanitizeFlowResourceDefinition(validation.graph);
 };
 
-const saveDraft = async () => {
+const saveDraft = async ({ successMessage = "草稿已保存" } = {}) => {
   if (!flowInfoData.value.itemId) return false;
   draftSaving.value = true;
   try {
@@ -1474,7 +1489,7 @@ const saveDraft = async () => {
     draftDirty.value = false;
     oldFlowData = JSON.parse(JSON.stringify(lf.getGraphData()));
     if (flowState.value === "updateData") flowState.value = "draftSaved";
-    ElMessage.success("草稿已保存");
+    ElMessage.success(successMessage);
     return true;
   } catch (error) {
     ElMessage.error(error?.message || "保存草稿失败");