修正类型导入写法，补上 pnpm 锁文件

- ItemType / ColumnItem / EleProTableDone 等纯类型改用 import type，
  避免打包器把类型当运行时依赖处理
- 提交 pnpm-lock.yaml 与 pnpm-workspace.yaml

注：仓库里原有的 package-lock.json 与 yarn.lock 未动，三份锁文件并存。

src/views/oa/chatgpt/index.bak.vue

@@ -72,7 +72,7 @@ import { useThemeStore } from "@/store/modules/theme";
 import { uploadFile } from "@/api/system/file";
 import type { Notice } from "@/api/oa/notice/model";
 import { FILE_SERVER } from "@/config/setting";
-import { ItemType } from "ele-admin-pro/es/ele-image-upload/types";
+import type { ItemType } from "ele-admin-pro/es/ele-image-upload/types";
 import { listNotice, removeNotice } from "@/api/oa/notice";
 import { chat, send } from "@/api/oa/chatgpt";
 import {