feat: 优化聊天附件拖拽上传提示

- 不支持格式改用轻量提示并展示支持范围

- 扩展拖拽区域并增加全区上传覆盖层

- 补充文档和图片格式校验测试

easyflow-ui-admin/packages/effects/common-ui/src/components/chat-timeline/index.ts

@@ -34,6 +34,8 @@ export type {
   ChatTimelineToolStatus,
 } from './types';
 export {
+  CHAT_DOCUMENT_SUPPORTED_FORMATS,
+  type ChatDocumentAddFilesResult,
   type ChatDocumentUploadApi,
   type ChatDocumentUploadContext,
   type ChatDocumentUploadView,

easyflow-ui-admin/packages/effects/common-ui/src/components/chat-timeline/useChatDocumentUploads.ts

@@ -11,6 +11,8 @@ const MAX_EXCEL_BYTES = 10 * 1024 * 1024;
 const MAX_TEXT_BYTES = 5 * 1024 * 1024;
 const POLL_INTERVAL_MS = 750;
 const MAX_POLL_ATTEMPTS = 80;
+export const CHAT_DOCUMENT_SUPPORTED_FORMATS =
+  'PDF、Word、PPT、Excel、TXT、Markdown';
 const SUPPORTED_EXTENSIONS = new Set([
   'doc',
   'docx',
@@ -54,6 +56,11 @@ export interface ChatDocumentUploadApi {
   ) => Promise<RequestResult<ChatDocumentUploadView>>;
 }
 
+export interface ChatDocumentAddFilesResult {
+  rejectedCount: number;
+  unsupportedCount: number;
+}
+
 interface LocalDocument extends ChatDocumentAttachment {
   file?: File;
 }
@@ -198,9 +205,18 @@ export function createChatDocumentUploads(api: ChatDocumentUploadApi) {
   }
 
   async function addFiles(files: File[], context: ChatDocumentUploadContext) {
+    const supportedFiles: File[] = [];
+    let unsupportedCount = 0;
+    for (const file of files) {
+      if (SUPPORTED_EXTENSIONS.has(extensionOf(file))) {
+        supportedFiles.push(file);
+      } else {
+        unsupportedCount++;
+      }
+    }
     const available = Math.max(0, MAX_DOCUMENTS - items.value.length);
-    const accepted = files.slice(0, available);
-    const rejectedCount = Math.max(0, files.length - accepted.length);
+    const accepted = supportedFiles.slice(0, available);
+    const rejectedCount = Math.max(0, supportedFiles.length - accepted.length);
     const currentTotal = items.value.reduce(
       (total, item) => total + Number(item.size || 0),
       0,
@@ -220,11 +236,6 @@ export function createChatDocumentUploads(api: ChatDocumentUploadApi) {
       items.value.push(item);
       const trackedItem = items.value[items.value.length - 1];
       if (!trackedItem) continue;
-      if (!SUPPORTED_EXTENSIONS.has(extension)) {
-        trackedItem.status = 'error';
-        trackedItem.error = '仅支持 PDF、Word、PPT、Excel、TXT、Markdown';
-        continue;
-      }
       if (file.size > maxBytes(extension)) {
         trackedItem.status = 'error';
         trackedItem.error = sizeLimitMessage(extension);
@@ -239,7 +250,10 @@ export function createChatDocumentUploads(api: ChatDocumentUploadApi) {
       uploads.push(upload(trackedItem, context));
     }
     await Promise.all(uploads);
-    return rejectedCount;
+    return {
+      rejectedCount,
+      unsupportedCount,
+    } satisfies ChatDocumentAddFilesResult;
   }
 
   async function remove(item: ChatDocumentAttachment) {