修正文件处理

frontend/src/modules/dashboard/BotDashboardModule.css

@@ -462,6 +462,7 @@
 .ops-attach-link {
   display: inline-flex;
   align-items: center;
+  gap: 6px;
   max-width: 100%;
   padding: 4px 8px;
   border: 1px solid var(--line);
@@ -472,6 +473,14 @@
   background: color-mix(in oklab, var(--panel) 78%, transparent);
 }
 
+.ops-attach-link-icon {
+  flex: 0 0 auto;
+}
+
+.ops-attach-link-name {
+  min-width: 0;
+}
+
 .ops-attach-link:hover {
   border-color: color-mix(in oklab, var(--brand) 56%, var(--line) 44%);
 }
@@ -1409,11 +1418,14 @@
   max-height: calc(100vh - 170px);
 }
 
-.workspace-preview-header {
+.modal-title-row.workspace-preview-header {
   display: flex;
   align-items: flex-start;
   justify-content: space-between;
   gap: 10px;
+  position: relative;
+  padding-right: 72px;
+  min-height: 28px;
 }
 
 .workspace-preview-header-text {
@@ -1427,6 +1439,9 @@
   align-items: center;
   gap: 6px;
   flex: 0 0 auto;
+  position: absolute;
+  top: 0;
+  right: 0;
 }
 
 .workspace-preview-body {

frontend/src/modules/dashboard/BotDashboardModule.tsx

@@ -1,6 +1,6 @@
 import { useEffect, useMemo, useRef, useState, type AnchorHTMLAttributes, type ChangeEvent, type KeyboardEvent, type ReactNode } from 'react';
 import axios from 'axios';
-import { Activity, Boxes, Check, Clock3, EllipsisVertical, Eye, EyeOff, FileText, FolderOpen, Hammer, Maximize2, MessageSquareText, Minimize2, Paperclip, Plus, Power, PowerOff, RefreshCw, Repeat2, Save, Settings2, SlidersHorizontal, TriangleAlert, Trash2, UserRound, Waypoints, X } from 'lucide-react';
+import { Activity, Boxes, Check, Clock3, Download, EllipsisVertical, Eye, EyeOff, FileText, FolderOpen, Hammer, Maximize2, MessageSquareText, Minimize2, Paperclip, Plus, Power, PowerOff, RefreshCw, Repeat2, Save, Settings2, SlidersHorizontal, TriangleAlert, Trash2, UserRound, Waypoints, X } from 'lucide-react';
 import ReactMarkdown from 'react-markdown';
 import remarkGfm from 'remark-gfm';
 import rehypeRaw from 'rehype-raw';
@@ -234,6 +234,16 @@ function isPreviewableWorkspacePath(path: string) {
   );
 }
 
+function workspaceFileAction(path: string): 'preview' | 'download' | 'unsupported' {
+  const normalized = String(path || '').trim();
+  if (!normalized) return 'unsupported';
+  if (isPdfPath(normalized) || isOfficePath(normalized)) return 'download';
+  if (isImagePath(normalized)) return 'preview';
+  const lower = normalized.toLowerCase();
+  if (['.md', '.json', '.log', '.txt', '.csv'].some((ext) => lower.endsWith(ext))) return 'preview';
+  return 'unsupported';
+}
+
 const WORKSPACE_LINK_PREFIX = 'https://workspace.local/open/';
 
 function buildWorkspaceLink(path: string) {
@@ -426,15 +436,19 @@ export function BotDashboardModule({
   const openWorkspacePathFromChat = (path: string) => {
     const normalized = String(path || '').trim();
     if (!normalized) return;
-    if (isPdfPath(normalized) || isOfficePath(normalized)) {
+    const action = workspaceFileAction(normalized);
+    if (action === 'download') {
       triggerWorkspaceFileDownload(normalized);
       return;
     }
-    if (!isPreviewableWorkspacePath(normalized)) {
+    if (action === 'preview') {
+      void openWorkspaceFilePreview(normalized);
+      return;
+    }
+    if (!isPreviewableWorkspacePath(normalized) || action === 'unsupported') {
       notify(fileNotPreviewableLabel, { tone: 'warning' });
       return;
     }
-    void openWorkspaceFilePreview(normalized);
   };
   const renderWorkspaceAwareText = (text: string, keyPrefix: string): ReactNode[] => {
     const source = String(text || '');
@@ -723,6 +737,7 @@ export function BotDashboardModule({
                   <div className="ops-chat-attachments">
                     {(item.attachments || []).map((rawPath) => {
                       const filePath = normalizeDashboardAttachmentPath(rawPath);
+                      const fileAction = workspaceFileAction(filePath);
                       const filename = filePath.split('/').pop() || filePath;
                       return (
                         <a
@@ -731,14 +746,18 @@ export function BotDashboardModule({
                           href="#"
                           onClick={(event) => {
                             event.preventDefault();
-                            if (isPdfPath(filePath) || isOfficePath(filePath)) {
-                              triggerWorkspaceFileDownload(filePath);
-                              return;
-                            }
                             openWorkspacePathFromChat(filePath);
                           }}
+                          title={fileAction === 'download' ? t.download : fileAction === 'preview' ? t.previewTitle : t.fileNotPreviewable}
                         >
-                          {filename}
+                          {fileAction === 'download' ? (
+                            <Download size={12} className="ops-attach-link-icon" />
+                          ) : fileAction === 'preview' ? (
+                            <Eye size={12} className="ops-attach-link-icon" />
+                          ) : (
+                            <FileText size={12} className="ops-attach-link-icon" />
+                          )}
+                          <span className="ops-attach-link-name">{filename}</span>
                         </a>
                       );
                     })}