refactor: 为新增按钮添加加载状态管理

统一三个页面的新增按钮加载状态处理，通过封装handleAdd函数统一控制loading状态，避免重复代码，提升交互体验

frontend/web/src/views/module_platform/invoice/index.vue

@@ -49,7 +49,7 @@
         <ElCard shadow="hover" class="fa-table-card" :style="{ 'margin-top': '0' }">
           <FaTableHeader :loading="myLoading" @refresh="getMyData">
             <template #left>
-              <FaTableHeaderLeft perm-create="tenant:admin" @add="openApplyDialog" />
+              <FaTableHeaderLeft perm-create="tenant:admin" :create-loading="createLoading" @add="handleAdd" />
             </template>
           </FaTableHeader>
 
@@ -382,6 +382,17 @@ const applyRules = {
   title: [{ required: true, message: "请输入发票抬头", trigger: "blur" }],
 };
 
+const createLoading = ref(false);
+
+async function handleAdd() {
+  createLoading.value = true;
+  try {
+    openApplyDialog();
+  } finally {
+    createLoading.value = false;
+  }
+}
+
 function openApplyDialog() {
   Object.assign(applyFormData, {
     order_id: null,

frontend/web/src/views/module_task/workflow/definition/index.vue

@@ -34,7 +34,8 @@
             :perm-create="['module_task:workflow:definition:create']"
             :perm-delete="['module_task:workflow:definition:delete']"
             :delete-loading="batchDeleting"
-            @add="handleCreate"
+            :create-loading="createLoading"
+            @add="handleAdd"
             @delete="handleBatchDelete"
           />
         </template>
@@ -194,8 +195,9 @@ const selectedIds = computed(() =>
   selectedRows.value.map((r) => r.id).filter((id): id is number => typeof id === "number")
 );
 const batchDeleting = ref(false);
-
-function onTableSelectionChange(rows: WorkflowTable[]) {
+  const createLoading = ref(false);
+  
+  function onTableSelectionChange(rows: WorkflowTable[]) {
   selectedRows.value = rows;
 }
 
@@ -331,6 +333,15 @@ async function onResetSearch() {
 const selectedWorkflow = ref<WorkflowTable>();
 const createVisible = ref(false);
 
+async function handleAdd() {
+  createLoading.value = true;
+  try {
+    handleCreate();
+  } finally {
+    createLoading.value = false;
+  }
+}
+
 function handleCreate() {
   selectedWorkflow.value = undefined;
   createVisible.value = true;

frontend/web/src/views/module_task/workflow/node-type/index.vue

@@ -34,7 +34,8 @@
             :perm-create="['module_task:workflow:node-type:create']"
             :perm-delete="['module_task:workflow:node-type:delete']"
             :delete-loading="batchDeleting"
-            @add="openDialog()"
+            :create-loading="createLoading"
+            @add="handleAdd"
             @delete="handleBatchDelete"
           />
         </template>
@@ -194,6 +195,7 @@ const selectedIds = computed(() =>
   selectedRows.value.map((r) => r.id).filter((id): id is number => typeof id === "number")
 );
 const batchDeleting = ref(false);
+const createLoading = ref(false);
 
 function onTableSelectionChange(rows: WorkflowNodeTypeTable[]) {
   selectedRows.value = rows;
@@ -456,6 +458,15 @@ function handleCloseDialog() {
   resetForm();
 }
 
+async function handleAdd() {
+  createLoading.value = true;
+  try {
+    await openDialog();
+  } finally {
+    createLoading.value = false;
+  }
+}
+
 async function openDialog(id?: number) {
   resetForm();
   dialogTitle.value = id ? "编辑节点类型" : "新增节点类型";