fix(iot): 修复场景联动动作类型切换 + 数据规则弹窗 4 处 bug

- B50 动作类型切换清理失效：updateActionType 先调 onActionTypeChange
  （此时 action.type 仍是旧值）再赋新值；onActionTypeChange 内恒真的
  type !== action.type 简化为 if (action.identifier)
- B16 新增弹窗不重置主表单：onOpenChange 关闭分支补 formApi.resetForm()
- B17 允许空数据源提交：source-config-form.validate() 补空数组校验
- B18 子表单校验 reject 未处理（弹窗关闭不掉）：onConfirm 内 try/catch
  包子表单校验，失败 return 中止提交

apps/web-antd/src/views/iot/rule/data/rule/modules/form.vue

@@ -47,7 +47,11 @@ const [Modal, modalApi] = useVbenModal({
       return;
     }
     // 校验数据源配置
-    await sourceConfigRef.value?.validate();
+    try {
+      await sourceConfigRef.value?.validate();
+    } catch {
+      return;
+    }
     modalApi.lock();
     // 提交表单
     const data = (await formApi.getValues()) as DataRuleApi.DataRule;
@@ -65,6 +69,7 @@ const [Modal, modalApi] = useVbenModal({
   async onOpenChange(isOpen: boolean) {
     if (!isOpen) {
       formData.value = undefined;
+      await formApi.resetForm();
       sourceConfigRef.value?.setData([]);
       return;
     }

apps/web-antd/src/views/iot/rule/data/rule/modules/source-config-form.vue

@@ -154,6 +154,10 @@ async function handleDelete(rowIndex: number) {
 
 /** 校验全部行；返回 Promise，失败时 reject 第一条错误信息 */
 function validate() {
+  if (formData.value.length === 0) {
+    message.error('请至少添加一条数据源配置');
+    return Promise.reject(new Error('数据源配置不能为空'));
+  }
   for (let i = 0; i < formData.value.length; i++) {
     const row = formData.value[i];
     if (!row.productId) {

apps/web-antd/src/views/iot/rule/scene/form/sections/action-section.vue

@@ -99,8 +99,9 @@ function removeAction(index: number) {
  * @param type 执行器类型
  */
 function updateActionType(index: number, type: number) {
-  actions.value[index]!.type = type;
-  onActionTypeChange(actions.value[index] as RuleSceneApi.Action, type);
+  const action = actions.value[index] as RuleSceneApi.Action;
+  onActionTypeChange(action, type); // 须在赋新值前调用 ，内部依赖 action.type 旧值
+  action.type = type;
 }
 
 /**
@@ -134,7 +135,7 @@ function onActionTypeChange(action: RuleSceneApi.Action, type: number) {
       action.params = '';
     }
     // 切换到设备控制类型时清空 identifier，让用户重新选择
-    if (action.identifier && type !== action.type) {
+    if (action.identifier) {
       action.identifier = undefined;
     }
   } else if (isAlertAction(type)) {

apps/web-ele/src/views/iot/rule/data/rule/modules/form.vue

@@ -47,7 +47,11 @@ const [Modal, modalApi] = useVbenModal({
       return;
     }
     // 校验数据源配置
-    await sourceConfigRef.value?.validate();
+    try {
+      await sourceConfigRef.value?.validate();
+    } catch {
+      return;
+    }
     modalApi.lock();
     // 提交表单
     const data = (await formApi.getValues()) as DataRuleApi.DataRule;
@@ -65,6 +69,7 @@ const [Modal, modalApi] = useVbenModal({
   async onOpenChange(isOpen: boolean) {
     if (!isOpen) {
       formData.value = undefined;
+      await formApi.resetForm();
       sourceConfigRef.value?.setData([]);
       return;
     }

apps/web-ele/src/views/iot/rule/data/rule/modules/source-config-form.vue

@@ -154,6 +154,10 @@ async function handleDelete(rowIndex: number) {
 
 /** 校验全部行；返回 Promise，失败时 reject 第一条错误信息 */
 function validate() {
+  if (formData.value.length === 0) {
+    ElMessage.error('请至少添加一条数据源配置');
+    return Promise.reject(new Error('数据源配置不能为空'));
+  }
   for (let i = 0; i < formData.value.length; i++) {
     const row = formData.value[i];
     if (!row.productId) {

apps/web-ele/src/views/iot/rule/scene/form/sections/action-section.vue

@@ -107,8 +107,9 @@ function removeAction(index: number) {
  * @param type 执行器类型
  */
 function updateActionType(index: number, type: number) {
-  actions.value[index]!.type = type;
-  onActionTypeChange(actions.value[index] as RuleSceneApi.Action, type);
+  const action = actions.value[index] as RuleSceneApi.Action;
+  onActionTypeChange(action, type); // 须在赋新值前调用 ，内部依赖 action.type 旧值
+  action.type = type;
 }
 
 /**
@@ -142,7 +143,7 @@ function onActionTypeChange(action: RuleSceneApi.Action, type: number) {
       action.params = '';
     }
     // 切换到设备控制类型时清空 identifier，让用户重新选择
-    if (action.identifier && type !== action.type) {
+    if (action.identifier) {
       action.identifier = undefined;
     }
   } else if (isAlertAction(type)) {