feat: 添加全局确认对话框管理器，重构对话框服务，优化用户交互体验

src/renderer/screens/CreateTemplateScreen.vue

@@ -358,6 +358,7 @@ import { useRoute, useRouter } from 'vue-router'
 import { useTemplateStore } from '@/renderer/store/template'
 import { Template } from '@/renderer/store/template'
 import TemplateTree from '@/renderer/components/TemplateTree.vue'
+import { ConfirmDialogService } from '@/renderer/utils/confirm-dialog-service'
 
 const router = useRouter()
 const route = useRoute()
@@ -810,9 +811,17 @@ const selectAndAddFile = async () => {
   currentEditingItem.value = null
 }
 
-const goBack = () => {
+const goBack = async () => {
   if (hasChanges.value) {
-    if (confirm('您有未保存的更改，确定要离开吗？')) {
+    const confirmed = await ConfirmDialogService.confirm({
+      title: '确认离开',
+      message: '您有未保存的更改，确定要离开吗？',
+      confirmText: '离开',
+      cancelText: '取消',
+      confirmColor: 'warning'
+    })
+    
+    if (confirmed) {
       router.push('/templates')
     }
   } else {
@@ -904,8 +913,16 @@ const showEditFileDialog = (file: { path: string; content?: string; sourceFilePa
 // Variable to track the current item being edited
 const currentEditingItem = ref<{ path: string; type: 'directory' | 'file'; content?: string; sourceFilePath?: string } | null>(null)
 
-const deleteItem = (item: TreeItem) => {
-  if (!confirm('确定要删除此项吗？')) return
+const deleteItem = async (item: TreeItem) => {
+  const confirmed = await ConfirmDialogService.confirm({
+    title: '删除确认',
+    message: '确定要删除此项吗？',
+    confirmText: '删除',
+    cancelText: '取消',
+    confirmColor: 'error'
+  })
+  
+  if (!confirmed) return
 
   if (item.type === 'directory') {
     // Find all directories that start with the item name (including the exact match)