feat(FileTree): 为重命名/新建弹窗添加自动聚焦和回车确认功能

- 使用 ref 引用输入框并在弹窗显示时自动聚焦
- 为输入框添加 pressEnter 事件监听以支持回车确认
- 统一背景菜单中字符串的引号格式

src/components/FileTree.vue

@@ -76,7 +76,7 @@
 
     <!-- 重命名/新建弹窗 -->
     <a-modal v-model:open="modalVisible" :title="modalTitle" @ok="handleModalOk">
-      <a-input v-model:value="modalInputValue" :placeholder="modalPlaceholder" />
+      <a-input ref="modalInputRef" v-model:value="modalInputValue" :placeholder="modalPlaceholder" @pressEnter="handleModalOk" />
     </a-modal>
   </div>
 </template>
@@ -102,6 +102,15 @@ const currentNode = ref(null);
 const searchKeyword = ref("");
 const selectedKeys = ref([]);
 const treeContentRef = ref(null);
+const modalInputRef = ref(null);
+
+watch(modalVisible, (val) => {
+  if (val) {
+    nextTick(() => {
+      modalInputRef.value?.focus();
+    });
+  }
+});
 
 // 监听 activeTab 变化，实现联动
 watch(
@@ -374,7 +383,7 @@ const handleMenuClick = async ({ key }, node) => {
 };
 
 const handleBackgroundMenuClick = ({ key }) => {
-  if (key === 'refresh') {
+  if (key === "refresh") {
     handleRefresh();
     return;
   }
@@ -387,7 +396,7 @@ const handleBackgroundMenuClick = ({ key }) => {
   const rootNode = {
     name: rootName,
     path: state.rootPath,
-    type: "directory"
+    type: "directory",
   };
 
   handleMenuClick({ key }, rootNode);