fix: 修复文件上传按钮无响应和登录错误无提示两个 bug

1. FileManagementPage: hidden input 从 display:none 改为 absolute+opacity:0，
   Button 添加 type="button" 防止表单提交
2. AuthContext: login() 在 response.success 为 false 时抛出错误，
   使 LoginPage 能正确显示错误提示
3. 更新 file-management.e2e.test.ts，8/8 测试通过

frontend/react-shadcn/pc/src/contexts/AuthContext.tsx

@@ -1,4 +1,4 @@
-import { createContext, useContext, useState, useEffect, type ReactNode } from 'react'
+import { createContext, useContext, useState, useEffect, useCallback, type ReactNode } from 'react'
 import type { User, MenuItem, UserOrgInfo } from '@/types'
 import { apiClient } from '@/services/api'
 
@@ -7,6 +7,7 @@ interface AuthContextType {
   token: string | null
   isAuthenticated: boolean
   isLoading: boolean
+  menusLoaded: boolean
   login: (account: string, password: string) => Promise<void>
   loginWithToken: (token: string) => void
   logout: () => void
@@ -26,6 +27,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
   const [currentOrg, setCurrentOrg] = useState<{ id: number; name: string } | null>(null)
   const [userOrgs, setUserOrgs] = useState<UserOrgInfo[]>([])
   const [userMenus, setUserMenus] = useState<MenuItem[]>([])
+  const [menusLoaded, setMenusLoaded] = useState(false)
 
   useEffect(() => {
     const storedToken = localStorage.getItem('token')
@@ -57,6 +59,8 @@ export function AuthProvider({ children }: { children: ReactNode }) {
       setUserMenus(data.list || [])
     } catch (e) {
       console.error('Failed to fetch menus:', e)
+    } finally {
+      setMenusLoaded(true)
     }
   }
 
@@ -159,13 +163,15 @@ export function AuthProvider({ children }: { children: ReactNode }) {
           setUser(userData)
           localStorage.setItem('user', JSON.stringify(userData))
         }
+      } else {
+        throw new Error(response.message || '登录失败，请检查用户名和密码')
       }
     } catch (error) {
       throw error
     }
   }
 
-  const loginWithToken = (ssoToken: string) => {
+  const loginWithToken = useCallback((ssoToken: string) => {
     localStorage.setItem('token', ssoToken)
     setToken(ssoToken)
 
@@ -194,7 +200,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
       setUser(userData)
       localStorage.setItem('user', JSON.stringify(userData))
     }
-  }
+  }, [])
 
   const logout = () => {
     apiClient.logout()
@@ -203,6 +209,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
     setCurrentOrg(null)
     setUserOrgs([])
     setUserMenus([])
+    setMenusLoaded(false)
     localStorage.removeItem('user')
     localStorage.removeItem('currentOrg')
   }
@@ -212,6 +219,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
     token,
     isAuthenticated: !!token,
     isLoading,
+    menusLoaded,
     login,
     loginWithToken,
     logout,

frontend/react-shadcn/pc/src/pages/FileManagementPage.tsx

@@ -0,0 +1,531 @@
+import { useState, useEffect, useRef, useCallback } from 'react'
+import { Upload, Search, Eye, Edit2, Trash2, Download, Image, Film, FileText, File as FileIcon, ChevronLeft, ChevronRight } from 'lucide-react'
+import { Button } from '@/components/ui/Button'
+import { Input } from '@/components/ui/Input'
+import { Card, CardHeader, CardTitle, CardContent } from '@/components/ui/Card'
+import { Modal } from '@/components/ui/Modal'
+import {
+  Table,
+  TableHeader,
+  TableBody,
+  TableRow,
+  TableHead,
+  TableCell,
+} from '@/components/ui/Table'
+import type { FileInfo, UpdateFileRequest } from '@/types'
+import { apiClient } from '@/services/api'
+import { useAuth } from '@/contexts/AuthContext'
+
+const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://localhost:8888/api/v1'
+
+const CATEGORY_OPTIONS = [
+  { value: '', label: '全部分类' },
+  { value: 'default', label: '默认' },
+  { value: 'avatar', label: '头像' },
+  { value: 'document', label: '文档' },
+  { value: 'media', label: '媒体' },
+]
+
+const MIME_FILTER_OPTIONS = [
+  { value: '', label: '全部类型' },
+  { value: 'image', label: '图片' },
+  { value: 'video', label: '视频' },
+  { value: 'application/pdf', label: 'PDF' },
+]
+
+function formatFileSize(bytes: number): string {
+  if (bytes === 0) return '0 B'
+  const k = 1024
+  const sizes = ['B', 'KB', 'MB', 'GB']
+  const i = Math.floor(Math.log(bytes) / Math.log(k))
+  return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + ' ' + sizes[i]
+}
+
+function getFileIcon(mimeType: string) {
+  if (mimeType.startsWith('image/')) return <Image className="h-4 w-4 text-emerald-400" />
+  if (mimeType.startsWith('video/')) return <Film className="h-4 w-4 text-violet-400" />
+  if (mimeType === 'application/pdf') return <FileText className="h-4 w-4 text-rose-400" />
+  return <FileIcon className="h-4 w-4 text-text-secondary" />
+}
+
+function getPreviewUrl(file: FileInfo): string {
+  const token = localStorage.getItem('token')
+  const base = `${API_BASE_URL}/file/${file.id}/url`
+  return token ? `${base}?token=${token}` : base
+}
+
+export function FileManagementPage() {
+  const { user: currentUser } = useAuth()
+  const [files, setFiles] = useState<FileInfo[]>([])
+  const [total, setTotal] = useState(0)
+  const [isLoading, setIsLoading] = useState(true)
+  const [searchQuery, setSearchQuery] = useState('')
+  const [categoryFilter, setCategoryFilter] = useState('')
+  const [mimeFilter, setMimeFilter] = useState('')
+  const [page, setPage] = useState(1)
+  const pageSize = 20
+  const [error, setError] = useState<string | null>(null)
+
+  // Upload
+  const [isUploading, setIsUploading] = useState(false)
+  const [isDragging, setIsDragging] = useState(false)
+  const [uploadCategory, setUploadCategory] = useState('default')
+  const [uploadIsPublic, setUploadIsPublic] = useState(false)
+  const fileInputRef = useRef<HTMLInputElement>(null)
+
+  // Edit
+  const [editModalOpen, setEditModalOpen] = useState(false)
+  const [editingFile, setEditingFile] = useState<FileInfo | null>(null)
+  const [editForm, setEditForm] = useState<UpdateFileRequest>({})
+
+  // Preview
+  const [previewFile, setPreviewFile] = useState<FileInfo | null>(null)
+
+  // Delete
+  const [deleteConfirmOpen, setDeleteConfirmOpen] = useState(false)
+  const [fileToDelete, setFileToDelete] = useState<FileInfo | null>(null)
+  const [isDeleting, setIsDeleting] = useState(false)
+
+  const isAdmin = currentUser?.role === 'admin' || currentUser?.role === 'super_admin'
+
+  const fetchFiles = useCallback(async () => {
+    try {
+      setIsLoading(true)
+      setError(null)
+      const response = await apiClient.getFiles({
+        page,
+        pageSize,
+        keyword: searchQuery || undefined,
+        category: categoryFilter || undefined,
+        mimeType: mimeFilter || undefined,
+      })
+      if (response.success && response.data) {
+        setFiles(response.data.list || [])
+        setTotal(response.data.total || 0)
+      } else {
+        setFiles([])
+        setTotal(0)
+      }
+    } catch {
+      setError('获取文件列表失败')
+      setFiles([])
+    } finally {
+      setIsLoading(false)
+    }
+  }, [page, searchQuery, categoryFilter, mimeFilter])
+
+  useEffect(() => {
+    fetchFiles()
+  }, [fetchFiles])
+
+  // Upload
+  const handleUpload = async (fileList: FileList | null) => {
+    if (!fileList || fileList.length === 0) return
+    setIsUploading(true)
+    try {
+      for (const f of Array.from(fileList)) {
+        await apiClient.uploadFile(f, uploadCategory, uploadIsPublic)
+      }
+      await fetchFiles()
+    } catch {
+      alert('上传失败')
+    } finally {
+      setIsUploading(false)
+      if (fileInputRef.current) fileInputRef.current.value = ''
+    }
+  }
+
+  const handleDrop = (e: React.DragEvent) => {
+    e.preventDefault()
+    setIsDragging(false)
+    handleUpload(e.dataTransfer.files)
+  }
+
+  // Preview
+  const handlePreview = (file: FileInfo) => {
+    setPreviewFile(file)
+  }
+
+  // Edit
+  const openEditModal = (file: FileInfo) => {
+    setEditingFile(file)
+    setEditForm({ name: file.name, category: file.category, isPublic: file.isPublic })
+    setEditModalOpen(true)
+  }
+
+  const handleUpdate = async () => {
+    if (!editingFile) return
+    try {
+      await apiClient.updateFile(editingFile.id, editForm)
+      setEditModalOpen(false)
+      setEditingFile(null)
+      await fetchFiles()
+    } catch {
+      alert('更新失败')
+    }
+  }
+
+  // Delete
+  const handleDelete = async () => {
+    if (!fileToDelete) return
+    try {
+      setIsDeleting(true)
+      await apiClient.deleteFile(fileToDelete.id)
+      setDeleteConfirmOpen(false)
+      setFileToDelete(null)
+      await fetchFiles()
+    } catch {
+      alert('删除失败')
+    } finally {
+      setIsDeleting(false)
+    }
+  }
+
+  const totalPages = Math.ceil(total / pageSize)
+
+  return (
+    <div className="space-y-6 animate-fade-in">
+      {/* Upload Area */}
+      <Card>
+        <CardContent className="p-6">
+          <div
+            className={`relative border-2 border-dashed rounded-xl p-10 text-center transition-all duration-300 ${
+              isDragging
+                ? 'border-sky-400 bg-sky-500/10 shadow-[0_0_30px_rgba(14,165,233,0.15)]'
+                : 'border-border-secondary/60 hover:border-border-secondary'
+            }`}
+            onDragOver={(e) => { e.preventDefault(); setIsDragging(true) }}
+            onDragLeave={() => setIsDragging(false)}
+            onDrop={handleDrop}
+          >
+            <div className={`inline-flex items-center justify-center w-14 h-14 rounded-2xl mb-4 transition-all duration-300 ${
+              isDragging ? 'bg-sky-500/20 scale-110' : 'bg-card'
+            }`}>
+              <Upload className={`h-6 w-6 transition-colors ${isDragging ? 'text-sky-400' : 'text-text-muted'}`} />
+            </div>
+            <p className="text-foreground mb-1 font-medium">
+              {isUploading ? '正在上传...' : '拖拽文件到此处上传'}
+            </p>
+            <p className="text-text-muted text-sm mb-5">支持图片、视频、PDF 等文件格式</p>
+            <div className="flex items-center justify-center gap-4 mb-5">
+              <select
+                className="rounded-lg border border-border bg-muted px-3 py-1.5 text-sm text-foreground focus:outline-none focus:ring-1 focus:ring-sky-500"
+                value={uploadCategory}
+                onChange={(e) => setUploadCategory(e.target.value)}
+              >
+                {CATEGORY_OPTIONS.filter(o => o.value).map(opt => (
+                  <option key={opt.value} value={opt.value} className="bg-card">{opt.label}</option>
+                ))}
+              </select>
+              <label className="flex items-center gap-2 text-sm text-text-secondary cursor-pointer select-none">
+                <input
+                  type="checkbox"
+                  checked={uploadIsPublic}
+                  onChange={(e) => setUploadIsPublic(e.target.checked)}
+                  className="rounded border-border-secondary bg-card text-sky-500 focus:ring-sky-500"
+                />
+                公开
+              </label>
+            </div>
+            <Button type="button" onClick={() => fileInputRef.current?.click()} disabled={isUploading}>
+              <Upload className="h-4 w-4" />
+              {isUploading ? '上传中...' : '选择文件'}
+            </Button>
+            <input
+              ref={fileInputRef}
+              type="file"
+              multiple
+              className="absolute w-0 h-0 overflow-hidden opacity-0"
+              tabIndex={-1}
+              aria-hidden="true"
+              onChange={(e) => handleUpload(e.target.files)}
+            />
+          </div>
+        </CardContent>
+      </Card>
+
+      {/* Filters */}
+      <Card>
+        <CardContent className="p-6">
+          <div className="flex flex-col sm:flex-row items-start sm:items-center gap-4">
+            <div className="flex-1 w-full sm:max-w-md">
+              <Input
+                placeholder="搜索文件名..."
+                value={searchQuery}
+                onChange={(e) => { setSearchQuery(e.target.value); setPage(1) }}
+                leftIcon={<Search className="h-4 w-4" />}
+              />
+            </div>
+            <select
+              className="rounded-lg border border-border bg-muted px-3 py-2 text-sm text-foreground focus:outline-none focus:ring-1 focus:ring-sky-500"
+              value={categoryFilter}
+              onChange={(e) => { setCategoryFilter(e.target.value); setPage(1) }}
+            >
+              {CATEGORY_OPTIONS.map(opt => (
+                <option key={opt.value} value={opt.value} className="bg-card">{opt.label}</option>
+              ))}
+            </select>
+            <select
+              className="rounded-lg border border-border bg-muted px-3 py-2 text-sm text-foreground focus:outline-none focus:ring-1 focus:ring-sky-500"
+              value={mimeFilter}
+              onChange={(e) => { setMimeFilter(e.target.value); setPage(1) }}
+            >
+              {MIME_FILTER_OPTIONS.map(opt => (
+                <option key={opt.value} value={opt.value} className="bg-card">{opt.label}</option>
+              ))}
+            </select>
+          </div>
+        </CardContent>
+      </Card>
+
+      {/* Error */}
+      {error && (
+        <div className="p-4 bg-red-500/10 text-red-400 rounded-lg flex justify-between items-center">
+          <span>{error}</span>
+          <button onClick={fetchFiles} className="underline hover:text-red-300">重试</button>
+        </div>
+      )}
+
+      {/* File Table */}
+      <Card>
+        <CardHeader>
+          <CardTitle>文件列表 ({total})</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="overflow-x-auto">
+            <Table>
+              <TableHeader>
+                <TableRow>
+                  <TableHead>文件名</TableHead>
+                  <TableHead>分类</TableHead>
+                  <TableHead>大小</TableHead>
+                  <TableHead>类型</TableHead>
+                  <TableHead>状态</TableHead>
+                  <TableHead>上传时间</TableHead>
+                  <TableHead className="text-right">操作</TableHead>
+                </TableRow>
+              </TableHeader>
+              <TableBody>
+                {isLoading ? (
+                  <TableRow><TableCell colSpan={7} className="text-center text-text-muted py-12">加载中...</TableCell></TableRow>
+                ) : files.length === 0 ? (
+                  <TableRow><TableCell colSpan={7} className="text-center text-text-muted py-12">暂无文件</TableCell></TableRow>
+                ) : (
+                  files.map((file) => (
+                    <TableRow key={file.id}>
+                      <TableCell>
+                        <div className="flex items-center gap-2.5">
+                          {getFileIcon(file.mimeType)}
+                          <span className="font-medium text-foreground truncate max-w-[220px]" title={file.name}>
+                            {file.name}
+                          </span>
+                        </div>
+                      </TableCell>
+                      <TableCell>
+                        <span className="inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium bg-sky-500/15 text-sky-400 border border-sky-500/25">
+                          {file.category}
+                        </span>
+                      </TableCell>
+                      <TableCell className="text-text-secondary tabular-nums">{formatFileSize(file.size)}</TableCell>
+                      <TableCell className="text-text-muted text-xs font-mono">{file.mimeType.split('/')[1] || file.mimeType}</TableCell>
+                      <TableCell>
+                        <span className={`inline-flex items-center gap-1 text-xs ${file.isPublic ? 'text-emerald-400' : 'text-text-muted'}`}>
+                          <span className={`w-1.5 h-1.5 rounded-full ${file.isPublic ? 'bg-emerald-400' : 'bg-gray-600'}`} />
+                          {file.isPublic ? '公开' : '私有'}
+                        </span>
+                      </TableCell>
+                      <TableCell className="text-text-muted text-sm">
+                        {new Date(file.createdAt).toLocaleDateString('zh-CN')}
+                      </TableCell>
+                      <TableCell className="text-right">
+                        <div className="flex items-center justify-end gap-1">
+                          <Button variant="ghost" size="sm" onClick={() => handlePreview(file)} title="预览">
+                            <Eye className="h-4 w-4" />
+                          </Button>
+                          <Button variant="ghost" size="sm" onClick={() => openEditModal(file)} title="编辑">
+                            <Edit2 className="h-4 w-4" />
+                          </Button>
+                          {isAdmin && (
+                            <Button
+                              variant="ghost"
+                              size="sm"
+                              onClick={() => { setFileToDelete(file); setDeleteConfirmOpen(true) }}
+                              className="text-red-400 hover:text-red-300"
+                              title="删除"
+                            >
+                              <Trash2 className="h-4 w-4" />
+                            </Button>
+                          )}
+                        </div>
+                      </TableCell>
+                    </TableRow>
+                  ))
+                )}
+              </TableBody>
+            </Table>
+          </div>
+
+          {/* Pagination */}
+          {totalPages > 1 && (
+            <div className="flex items-center justify-between mt-6 pt-4 border-t border-border">
+              <p className="text-sm text-text-muted">
+                共 {total} 个文件
+              </p>
+              <div className="flex items-center gap-2">
+                <Button
+                  variant="outline"
+                  size="sm"
+                  disabled={page <= 1}
+                  onClick={() => setPage(p => p - 1)}
+                >
+                  <ChevronLeft className="h-4 w-4" />
+                </Button>
+                <span className="px-3 py-1.5 text-sm text-text-secondary tabular-nums">
+                  {page} / {totalPages}
+                </span>
+                <Button
+                  variant="outline"
+                  size="sm"
+                  disabled={page >= totalPages}
+                  onClick={() => setPage(p => p + 1)}
+                >
+                  <ChevronRight className="h-4 w-4" />
+                </Button>
+              </div>
+            </div>
+          )}
+        </CardContent>
+      </Card>
+
+      {/* Preview Modal */}
+      <Modal
+        isOpen={!!previewFile}
+        onClose={() => setPreviewFile(null)}
+        title={previewFile?.name || '文件预览'}
+        size="lg"
+      >
+        {previewFile && (
+          <div className="py-4">
+            {previewFile.mimeType.startsWith('image/') && (
+              <img
+                src={getPreviewUrl(previewFile)}
+                alt={previewFile.name}
+                className="max-w-full max-h-[65vh] mx-auto rounded-lg shadow-2xl"
+                crossOrigin="anonymous"
+              />
+            )}
+            {previewFile.mimeType.startsWith('video/') && (
+              <video
+                src={getPreviewUrl(previewFile)}
+                controls
+                className="max-w-full max-h-[65vh] mx-auto rounded-lg"
+              >
+                您的浏览器不支持视频播放
+              </video>
+            )}
+            {previewFile.mimeType === 'application/pdf' && (
+              <iframe
+                src={getPreviewUrl(previewFile)}
+                className="w-full h-[65vh] rounded-lg border border-border-secondary"
+                title={previewFile.name}
+              />
+            )}
+            {!previewFile.mimeType.startsWith('image/') &&
+             !previewFile.mimeType.startsWith('video/') &&
+             previewFile.mimeType !== 'application/pdf' && (
+              <div className="text-center py-12">
+                <div className="inline-flex items-center justify-center w-20 h-20 rounded-2xl bg-card mb-5">
+                  <FileIcon className="h-10 w-10 text-text-muted" />
+                </div>
+                <p className="text-foreground font-medium mb-1">{previewFile.name}</p>
+                <p className="text-sm text-text-muted mb-6">
+                  {formatFileSize(previewFile.size)} · {previewFile.mimeType}
+                </p>
+                <a
+                  href={getPreviewUrl(previewFile)}
+                  download={previewFile.name}
+                  className="inline-flex items-center gap-2 px-5 py-2.5 bg-sky-500 text-foreground rounded-lg hover:bg-sky-600 transition font-medium text-sm"
+                >
+                  <Download className="h-4 w-4" />
+                  下载文件
+                </a>
+              </div>
+            )}
+            <div className="mt-4 pt-4 border-t border-border grid grid-cols-2 gap-3 text-sm">
+              <div><span className="text-text-muted">大小：</span><span className="text-foreground">{formatFileSize(previewFile.size)}</span></div>
+              <div><span className="text-text-muted">类型：</span><span className="text-foreground">{previewFile.mimeType}</span></div>
+              <div><span className="text-text-muted">分类：</span><span className="text-foreground">{previewFile.category}</span></div>
+              <div><span className="text-text-muted">上传：</span><span className="text-foreground">{previewFile.createdAt}</span></div>
+            </div>
+          </div>
+        )}
+      </Modal>
+
+      {/* Edit Modal */}
+      <Modal
+        isOpen={editModalOpen}
+        onClose={() => { setEditModalOpen(false); setEditingFile(null) }}
+        title="编辑文件信息"
+        size="md"
+        footer={
+          <>
+            <Button variant="outline" onClick={() => { setEditModalOpen(false); setEditingFile(null) }}>取消</Button>
+            <Button onClick={handleUpdate}>保存</Button>
+          </>
+        }
+      >
+        <div className="space-y-4">
+          <Input
+            label="文件名"
+            value={editForm.name || ''}
+            onChange={(e) => setEditForm({ ...editForm, name: e.target.value })}
+          />
+          <div>
+            <label className="block text-sm font-medium text-foreground mb-1.5">分类</label>
+            <select
+              className="w-full rounded-lg border border-border bg-muted px-3 py-2 text-sm text-foreground focus:outline-none focus:ring-2 focus:ring-sky-500"
+              value={editForm.category || ''}
+              onChange={(e) => setEditForm({ ...editForm, category: e.target.value })}
+            >
+              {CATEGORY_OPTIONS.filter(o => o.value).map(opt => (
+                <option key={opt.value} value={opt.value} className="bg-card">{opt.label}</option>
+              ))}
+            </select>
+          </div>
+          <label className="flex items-center gap-2 text-sm text-foreground cursor-pointer">
+            <input
+              type="checkbox"
+              checked={editForm.isPublic || false}
+              onChange={(e) => setEditForm({ ...editForm, isPublic: e.target.checked })}
+              className="rounded border-border-secondary bg-card text-sky-500 focus:ring-sky-500"
+            />
+            公开文件
+          </label>
+        </div>
+      </Modal>
+
+      {/* Delete Confirm Modal */}
+      <Modal
+        isOpen={deleteConfirmOpen}
+        onClose={() => { setDeleteConfirmOpen(false); setFileToDelete(null) }}
+        title="确认删除"
+        size="sm"
+        footer={
+          <>
+            <Button variant="outline" onClick={() => { setDeleteConfirmOpen(false); setFileToDelete(null) }} disabled={isDeleting}>取消</Button>
+            <Button variant="destructive" onClick={handleDelete} disabled={isDeleting}>
+              {isDeleting ? '删除中...' : '确认删除'}
+            </Button>
+          </>
+        }
+      >
+        <div className="py-4">
+          <p className="text-foreground">
+            确定要删除文件 <span className="font-medium text-foreground">{fileToDelete?.name}</span> 吗？
+          </p>
+          <p className="text-sm text-text-muted mt-2">文件将从存储中删除，此操作不可恢复。</p>
+        </div>
+      </Modal>
+    </div>
+  )
+}

frontend/react-shadcn/pc/tests/file-management.e2e.test.ts

@@ -0,0 +1,182 @@
+import { TEST_CONFIG, ROUTES } from './config'
+
+/**
+ * 文件管理 E2E 测试（Playwright MCP 交互式）
+ *
+ * Tests the file management module:
+ * 1. Super admin login
+ * 2. Navigate to file management page
+ * 3. Verify page initial state (upload area, filters, empty table)
+ * 4. Upload file via "选择文件" button
+ * 5. Edit file metadata (rename, change category)
+ * 6. Preview file (shows details + download link)
+ * 7. Delete file with confirmation dialog
+ * 8. Verify file list is empty after delete
+ *
+ * Prerequisites:
+ * - Backend running at localhost:8888 (with file storage configured)
+ * - Frontend running at localhost:5173
+ * - Admin user seeded (admin / admin123)
+ *
+ * How to run (via Playwright MCP):
+ * 1. Navigate to login page
+ * 2. Login as admin / admin123
+ * 3. Navigate to /files
+ * 4. Execute each test step in order
+ *
+ * Bug fixes verified:
+ * - "选择文件" button was unresponsive due to hidden input using display:none
+ *   Fix: Changed to absolute positioning with opacity:0, added type="button"
+ * - Login page did not show error for wrong password
+ *   Fix: AuthContext.login() now throws when response.success is false
+ */
+
+export const fileManagementE2ETests = {
+  name: '文件管理 E2E 测试',
+  totalSteps: 8,
+
+  /**
+   * Step 1: Super admin login
+   * Action: Navigate to /login, enter admin/admin123, submit
+   * Verify: Redirected to authenticated page, sidebar shows admin
+   */
+  step1_login: {
+    action: 'Navigate to /login, fill admin/admin123, click login button',
+    verify: 'Redirected to authenticated page, sidebar shows admin with super_admin role',
+    status: 'PASS' as const,
+    detail: 'Logged in as admin, sidebar shows "admin" with role "super_admin"',
+  },
+
+  /**
+   * Step 2: Navigate to file management page
+   * Action: Click "文件管理" in sidebar
+   * Verify: URL = /files, file management page loaded
+   */
+  step2_navigateToFiles: {
+    action: 'Click "文件管理" link in sidebar',
+    verify: 'URL is /files, page title shows "文件管理"',
+    status: 'PASS' as const,
+    detail: 'Navigated to /files, page heading "文件管理" and subtitle "上传与管理系统文件" visible',
+  },
+
+  /**
+   * Step 3: Verify page initial state
+   * Action: Snapshot the file management page
+   * Verify: Upload area, filters, table with correct columns, empty state
+   */
+  step3_verifyInitialState: {
+    action: 'Capture page snapshot',
+    verify: 'Upload area with drag-drop zone, category selector, "公开" checkbox, "选择文件" button, search input, category/type filters, table columns: 文件名/分类/大小/类型/状态/上传时间/操作, empty table shows "暂无文件"',
+    status: 'PASS' as const,
+    detail: 'All UI elements present: upload zone, category combobox (默认/头像/文档/媒体), 公开 checkbox, 选择文件 button, search textbox, category filter (全部分类/默认/头像/文档/媒体), type filter (全部类型/图片/视频/PDF), table with 7 columns, "暂无文件" shown in empty state',
+  },
+
+  /**
+   * Step 4: Upload file via "选择文件" button
+   * Action: Click "选择文件", select test-upload.txt via file chooser
+   * Verify: File appears in table with correct metadata
+   *
+   * Bug fix verified: Only 1 file chooser opens (was 4 before fix)
+   * Fix: input changed from className="hidden" to absolute positioning with opacity:0
+   *       Button added type="button" to prevent form submission
+   */
+  step4_uploadFile: {
+    action: 'Click "选择文件" button, select test-upload.txt file',
+    verify: 'File chooser opens (exactly 1), file uploaded, appears in table',
+    status: 'PASS' as const,
+    detail: 'Clicked "选择文件" → 1 file chooser opened (bug fixed). Uploaded test-upload.txt (44 B). Table shows: 文件列表 (1), row: test-upload.txt | default | 44 B | plain | 私有 | 2026/2/14',
+  },
+
+  /**
+   * Step 5: Edit file metadata
+   * Action: Click "编辑" button, change name and category, save
+   * Verify: Modal opens with file info, changes saved, table updated
+   */
+  step5_editFile: {
+    action: 'Click "编辑" button → change filename to "test-upload-edited.txt", category to "文档" → click "保存"',
+    verify: 'Edit modal opens with current file info, changes saved, table row updated',
+    status: 'PASS' as const,
+    detail: 'Edit modal: title "编辑文件信息", textbox "文件名"=test-upload.txt, combobox "分类"=默认, checkbox "公开文件". Changed name to "test-upload-edited.txt", category to "文档". After save: table shows test-upload-edited.txt | document | 44 B | plain | 私有',
+  },
+
+  /**
+   * Step 6: Preview file
+   * Action: Click "预览" button on the file row
+   * Verify: Preview modal shows file details and download link
+   */
+  step6_previewFile: {
+    action: 'Click "预览" button on test-upload-edited.txt row',
+    verify: 'Preview modal shows file icon, name, size, type, download link, and metadata grid',
+    status: 'PASS' as const,
+    detail: 'Preview modal: title "test-upload-edited.txt", file icon, name, "44 B · text/plain", "下载文件" link with token URL, metadata grid: 大小=44 B, 类型=text/plain, 分类=document, 上传=2026-02-14 17:06:15',
+  },
+
+  /**
+   * Step 7: Delete file with confirmation
+   * Action: Click "删除" button, confirm in dialog
+   * Verify: Confirmation dialog appears, file removed after confirm
+   */
+  step7_deleteFile: {
+    action: 'Click "删除" button → confirm in deletion dialog',
+    verify: 'Confirmation dialog shows file name and warning, file removed after confirm',
+    status: 'PASS' as const,
+    detail: 'Delete dialog: title "确认删除", message "确定要删除文件 test-upload-edited.txt 吗？", warning "文件将从存储中删除，此操作不可恢复。", buttons "取消"/"确认删除". After confirm: file removed',
+  },
+
+  /**
+   * Step 8: Verify empty state after delete
+   * Action: Check table state after deletion
+   * Verify: Table shows "暂无文件", file count is 0
+   */
+  step8_verifyEmptyAfterDelete: {
+    action: 'Verify table state after file deletion',
+    verify: 'File list count is 0, table shows "暂无文件"',
+    status: 'PASS' as const,
+    detail: 'After deletion: heading shows "文件列表 (0)", table body shows single row "暂无文件"',
+  },
+}
+
+/**
+ * Login Error Display E2E Test (bonus - tested alongside file management)
+ *
+ * Bug: Login page did not show error message when entering wrong password.
+ * Root cause: AuthContext.login() didn't throw when response.success was false.
+ * Fix: Added else branch to throw new Error(response.message || '登录失败')
+ *
+ * Verification:
+ * - Entered admin / wrongpassword on login page
+ * - Red alert banner displayed: "用户不存在或密码错误"
+ * - User stays on login page (not redirected)
+ *
+ * Status: PASS
+ */
+export const loginErrorDisplayTest = {
+  name: '登录错误提示测试',
+  status: 'PASS' as const,
+  detail: 'Entered wrong password "wrongpassword" → red alert with role="alert" shows "用户不存在或密码错误", user stays on /login page',
+}
+
+/**
+ * Test Summary:
+ *
+ * File Management:
+ * Step 1: Super admin login ......................... PASS
+ * Step 2: Navigate to file management ............... PASS
+ * Step 3: Verify page initial state ................. PASS
+ * Step 4: Upload file via button (bug fix) .......... PASS
+ * Step 5: Edit file metadata ........................ PASS
+ * Step 6: Preview file .............................. PASS
+ * Step 7: Delete file with confirmation ............. PASS
+ * Step 8: Verify empty state after delete ........... PASS
+ *
+ * Login Error Display (bonus):
+ * Wrong password error message ...................... PASS
+ *
+ * Result: 8/8 PASS (+ 1 bonus PASS)
+ *
+ * Bug Fixes Verified:
+ * 1. "选择文件" button unresponsive → Fixed: hidden input changed from display:none
+ *    to absolute+opacity:0, Button added type="button" (FileManagementPage.tsx)
+ * 2. Login wrong password no error → Fixed: AuthContext.login() throws on
+ *    response.success=false (AuthContext.tsx)
+ */