fix: restore frontend source code (src/web/) that was accidentally deleted

Frontend source is needed for development/building the SPA.
Only Node.js runtime server code should be removed.

src/web/pages/ImportExport.tsx

@@ -0,0 +1,881 @@
+import React, { useEffect, useMemo, useRef, useState } from 'react';
+import { api } from '../api.js';
+import ModernSelect from '../components/ModernSelect.js';
+import { useToast } from '../components/Toast.js';
+import { tr } from '../i18n.js';
+
+type BackupType = 'all' | 'accounts' | 'preferences';
+
+type ParsedSummary = {
+  valid: boolean;
+  version: string;
+  timestampLabel: string;
+  hasAccounts: boolean;
+  hasPreferences: boolean;
+  hasLegacyData: boolean;
+  isAllApiHubV2: boolean;
+  sitesCount: number;
+  accountsCount: number;
+  bookmarksCount: number;
+  profilesCount: number;
+  tokensCount: number;
+  routesCount: number;
+  channelsCount: number;
+  siteDisabledModelsCount: number;
+  manualModelsCount: number;
+  downstreamApiKeysCount: number;
+  settingsCount: number;
+  ignoredSections: string[];
+};
+
+type WebdavConfigForm = {
+  enabled: boolean;
+  fileUrl: string;
+  username: string;
+  password: string;
+  exportType: BackupType;
+  autoSyncEnabled: boolean;
+  autoSyncCron: string;
+  hasPassword: boolean;
+  passwordMasked: string;
+};
+
+type WebdavSyncState = {
+  lastSyncAt: string | null;
+  lastError: string | null;
+};
+
+type WebdavConfigSnapshot = {
+  enabled: boolean;
+  fileUrl: string;
+  username: string;
+  exportType: BackupType;
+  autoSyncEnabled: boolean;
+  autoSyncCron: string;
+  hasPassword: boolean;
+};
+
+const DEFAULT_WEBDAV_CONFIG: WebdavConfigForm = {
+  enabled: false,
+  fileUrl: '',
+  username: '',
+  password: '',
+  exportType: 'all',
+  autoSyncEnabled: false,
+  autoSyncCron: '0 */6 * * *',
+  hasPassword: false,
+  passwordMasked: '',
+};
+
+const DEFAULT_WEBDAV_SNAPSHOT: WebdavConfigSnapshot = {
+  enabled: false,
+  fileUrl: '',
+  username: '',
+  exportType: 'all',
+  autoSyncEnabled: false,
+  autoSyncCron: '0 */6 * * *',
+  hasPassword: false,
+};
+
+const WEBDAV_EXPORT_TYPE_OPTIONS = [
+  { value: 'all', label: '全部' },
+  { value: 'accounts', label: '连接与路由策略' },
+  { value: 'preferences', label: '系统设置' },
+] as const;
+
+const formFieldLabelStyle: React.CSSProperties = {
+  fontSize: 13,
+  fontWeight: 500,
+  marginBottom: 8,
+  color: 'var(--color-text-secondary)',
+};
+
+const settingsInputStyle: React.CSSProperties = {
+  width: '100%',
+  padding: '10px 14px',
+  border: '1px solid var(--color-border)',
+  borderRadius: 'var(--radius-sm)',
+  fontSize: 13,
+  outline: 'none',
+  background: 'var(--color-bg)',
+  color: 'var(--color-text-primary)',
+  boxSizing: 'border-box',
+  transition: 'border-color 0.2s',
+};
+
+const webdavToggleStyle: React.CSSProperties = {
+  display: 'inline-flex',
+  alignItems: 'center',
+  gap: 8,
+  fontSize: 13,
+  cursor: 'pointer',
+};
+
+function downloadJsonFile(data: unknown, filename: string) {
+  const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+}
+
+function parseImportSummary(raw: string): ParsedSummary | null {
+  if (!raw.trim()) return null;
+
+  const invalidSummary = (): ParsedSummary => ({
+    valid: false,
+    version: '-',
+    timestampLabel: '未知',
+    hasAccounts: false,
+    hasPreferences: false,
+    hasLegacyData: false,
+    isAllApiHubV2: false,
+    sitesCount: 0,
+    accountsCount: 0,
+    bookmarksCount: 0,
+    profilesCount: 0,
+    tokensCount: 0,
+    routesCount: 0,
+    channelsCount: 0,
+    siteDisabledModelsCount: 0,
+    manualModelsCount: 0,
+    downstreamApiKeysCount: 0,
+    settingsCount: 0,
+    ignoredSections: [],
+  });
+
+  try {
+    const data = JSON.parse(raw) as any;
+    if (!data || typeof data !== 'object' || Array.isArray(data)) {
+      return invalidSummary();
+    }
+
+    const accountsSection = (data.accounts && typeof data.accounts === 'object' && !Array.isArray(data.accounts))
+      ? data.accounts
+      : null;
+    const preferencesSection = (data.preferences && typeof data.preferences === 'object' && !Array.isArray(data.preferences))
+      ? data.preferences
+      : null;
+
+    const legacyAccounts = Boolean(data.data?.accounts || Array.isArray(data.accounts));
+    const legacyPrefs = Boolean(data.data?.preferences);
+    const profilesCount = Array.isArray(data.apiCredentialProfiles?.profiles) ? data.apiCredentialProfiles.profiles.length : 0;
+    const bookmarksCount = Array.isArray(accountsSection?.bookmarks) ? accountsSection.bookmarks.length : 0;
+    const isNativeBoosapiBackup = Boolean(
+      accountsSection
+      && Array.isArray(accountsSection.sites)
+      && Array.isArray(accountsSection.accountTokens)
+      && Array.isArray(accountsSection.tokenRoutes)
+      && Array.isArray(accountsSection.routeChannels)
+    );
+    const hasLegacyAccountRows = Array.isArray(accountsSection?.accounts)
+      && accountsSection.accounts.some((row: any) => row && typeof row === 'object' && !Array.isArray(row) && (
+        'site_url' in row
+        || 'site_type' in row
+        || 'account_info' in row
+        || 'cookieAuth' in row
+        || 'authType' in row
+        || 'sub2apiAuth' in row
+      ));
+    const isAllApiHubV2 = Boolean(
+      accountsSection
+      && !isNativeBoosapiBackup
+      && hasLegacyAccountRows
+      && Array.isArray(accountsSection.accounts)
+      && (
+        (typeof data.version === 'string' && data.version.startsWith('2'))
+        || 'last_updated' in accountsSection
+        || Array.isArray(accountsSection.bookmarks)
+        || Array.isArray(accountsSection.pinnedAccountIds)
+        || Array.isArray(accountsSection.orderedAccountIds)
+        || profilesCount > 0
+      )
+    );
+
+    const hasAccounts = Boolean(
+      data.type === 'accounts'
+      || accountsSection
+      || legacyAccounts,
+    );
+    const hasPreferences = Boolean(
+      data.type === 'preferences'
+      || preferencesSection
+      || legacyPrefs,
+    );
+    const ignoredSections: string[] = [];
+    if (bookmarksCount > 0) ignoredSections.push('accounts.bookmarks');
+    if (data.channelConfigs && typeof data.channelConfigs === 'object' && !Array.isArray(data.channelConfigs)) ignoredSections.push('channelConfigs');
+    if (data.tagStore && typeof data.tagStore === 'object' && !Array.isArray(data.tagStore)) ignoredSections.push('tagStore');
+
+    const toCount = (value: unknown): number => (Array.isArray(value) ? value.length : 0);
+
+    const ts = data.timestamp !== undefined && data.timestamp !== null
+      ? new Date(data.timestamp)
+      : null;
+    const timestampLabel = ts && !Number.isNaN(ts.getTime()) ? ts.toLocaleString() : '未知';
+
+    return {
+      valid: hasAccounts || hasPreferences,
+      version: typeof data.version === 'string' ? data.version : '1.0',
+      timestampLabel,
+      hasAccounts,
+      hasPreferences,
+      hasLegacyData: legacyAccounts || legacyPrefs,
+      isAllApiHubV2,
+      sitesCount: toCount(accountsSection?.sites),
+      accountsCount: toCount(accountsSection?.accounts),
+      bookmarksCount,
+      profilesCount,
+      tokensCount: toCount(accountsSection?.accountTokens),
+      routesCount: toCount(accountsSection?.tokenRoutes),
+      channelsCount: toCount(accountsSection?.routeChannels),
+      siteDisabledModelsCount: toCount(accountsSection?.siteDisabledModels),
+      manualModelsCount: toCount(accountsSection?.manualModels),
+      downstreamApiKeysCount: toCount(accountsSection?.downstreamApiKeys),
+      settingsCount: toCount(preferencesSection?.settings),
+      ignoredSections,
+    };
+  } catch {
+    return invalidSummary();
+  }
+}
+
+function buildImportSuccessMessage(result: any): string {
+  const sections: string[] = [];
+  if (result?.sections?.accounts) sections.push('连接与路由策略');
+  if (result?.sections?.preferences) sections.push('系统设置');
+
+  const parts = [`导入完成：${sections.length ? sections.join('、') : '无有效数据'}`];
+  if (result?.summary) {
+    const summary = result.summary;
+    parts.push(
+      [
+        `站点 ${summary.importedSites ?? 0}`,
+        `账号 ${summary.importedAccounts ?? 0}`,
+        `API Key 连接 ${summary.importedApiKeyConnections ?? summary.importedProfiles ?? 0}`,
+        `跳过 ${summary.skippedAccounts ?? 0}`,
+      ].join(' / '),
+    );
+
+    if (Array.isArray(summary.ignoredSections) && summary.ignoredSections.length > 0) {
+      parts.push(`未原生导入 ${summary.ignoredSections.join('、')}`);
+    }
+  }
+
+  if (Array.isArray(result?.warnings) && result.warnings.length > 0) {
+    const preview = result.warnings.slice(0, 2).join('；');
+    parts.push(`提示：${preview}${result.warnings.length > 2 ? ` 等 ${result.warnings.length} 项` : ''}`);
+  }
+
+  return parts.join('；');
+}
+
+export default function ImportExport() {
+  const toast = useToast();
+  const [exportingType, setExportingType] = useState<BackupType | ''>('');
+  const [importing, setImporting] = useState(false);
+  const [importData, setImportData] = useState('');
+  const [selectedFileName, setSelectedFileName] = useState('');
+  const [dragOver, setDragOver] = useState(false);
+  const [webdavConfig, setWebdavConfig] = useState<WebdavConfigForm>(DEFAULT_WEBDAV_CONFIG);
+  const [savedWebdavConfig, setSavedWebdavConfig] = useState<WebdavConfigSnapshot>(DEFAULT_WEBDAV_SNAPSHOT);
+  const [webdavState, setWebdavState] = useState<WebdavSyncState>({ lastSyncAt: null, lastError: null });
+  const [webdavSaving, setWebdavSaving] = useState(false);
+  const [webdavAction, setWebdavAction] = useState<'export' | 'import' | ''>('');
+  const [clearWebdavPassword, setClearWebdavPassword] = useState(false);
+  const fileInputRef = useRef<HTMLInputElement>(null);
+
+  const summary = useMemo(() => parseImportSummary(importData), [importData]);
+
+  const buildWebdavForm = (config: any): WebdavConfigForm => ({
+    enabled: config.enabled === true,
+    fileUrl: String(config.fileUrl || ''),
+    username: String(config.username || ''),
+    password: '',
+    exportType: config.exportType === 'accounts' || config.exportType === 'preferences' ? config.exportType : 'all',
+    autoSyncEnabled: config.autoSyncEnabled === true,
+    autoSyncCron: String(config.autoSyncCron || DEFAULT_WEBDAV_CONFIG.autoSyncCron),
+    hasPassword: config.hasPassword === true,
+    passwordMasked: String(config.passwordMasked || ''),
+  });
+
+  const buildWebdavSnapshot = (config: any): WebdavConfigSnapshot => ({
+    enabled: config.enabled === true,
+    fileUrl: String(config.fileUrl || ''),
+    username: String(config.username || ''),
+    exportType: config.exportType === 'accounts' || config.exportType === 'preferences' ? config.exportType : 'all',
+    autoSyncEnabled: config.autoSyncEnabled === true,
+    autoSyncCron: String(config.autoSyncCron || DEFAULT_WEBDAV_CONFIG.autoSyncCron),
+    hasPassword: config.hasPassword === true,
+  });
+
+  const applyWebdavResponse = (result: any) => {
+    const config = result?.config;
+    if (config) {
+      setWebdavConfig(buildWebdavForm(config));
+      setSavedWebdavConfig(buildWebdavSnapshot(config));
+      setClearWebdavPassword(false);
+    }
+    const state = result?.state || result;
+    setWebdavState((prev) => ({
+      lastSyncAt: typeof state?.lastSyncAt === 'string' ? state.lastSyncAt : prev.lastSyncAt,
+      lastError: typeof state?.lastError === 'string'
+        ? state.lastError
+        : (state?.lastError === null ? null : prev.lastError),
+    }));
+  };
+
+  const webdavConfigDirty = (
+    webdavConfig.enabled !== savedWebdavConfig.enabled
+    || webdavConfig.fileUrl !== savedWebdavConfig.fileUrl
+    || webdavConfig.username !== savedWebdavConfig.username
+    || webdavConfig.exportType !== savedWebdavConfig.exportType
+    || webdavConfig.autoSyncEnabled !== savedWebdavConfig.autoSyncEnabled
+    || webdavConfig.autoSyncCron !== savedWebdavConfig.autoSyncCron
+    || webdavConfig.hasPassword !== savedWebdavConfig.hasPassword
+    || webdavConfig.password.trim().length > 0
+    || clearWebdavPassword
+  );
+
+  useEffect(() => {
+    let alive = true;
+    void api.getBackupWebdavConfig()
+      .then((result: any) => {
+        if (!alive) return;
+        applyWebdavResponse(result);
+      })
+      .catch((err: any) => {
+        if (!alive) return;
+        toast.error(err?.message || '加载 WebDAV 配置失败');
+      });
+    return () => {
+      alive = false;
+    };
+  }, [toast]);
+
+  const handleExport = async (type: BackupType) => {
+    setExportingType(type);
+    try {
+      const data = await api.exportBackup(type);
+      const date = new Date().toISOString().split('T')[0];
+      const fileName: Record<BackupType, string> = {
+        all: `boosapi-backup-${date}.json`,
+        accounts: `boosapi-accounts-${date}.json`,
+        preferences: `boosapi-preferences-${date}.json`,
+      };
+      downloadJsonFile(data, fileName[type]);
+      toast.success('导出成功');
+    } catch (err: any) {
+      toast.error(err?.message || '导出失败');
+    } finally {
+      setExportingType('');
+    }
+  };
+
+  const readFile = (file: File) => {
+    if (!file.name.endsWith('.json') && file.type !== 'application/json') {
+      toast.error('请选择 JSON 格式的备份文件');
+      return;
+    }
+    setSelectedFileName(file.name);
+    const reader = new FileReader();
+    reader.onload = (e) => {
+      setImportData(String(e.target?.result || ''));
+    };
+    reader.onerror = () => toast.error('读取文件失败');
+    reader.readAsText(file);
+  };
+
+  const handleImportFile = (event: React.ChangeEvent<HTMLInputElement>) => {
+    const file = event.target.files?.[0];
+    if (!file) return;
+    readFile(file);
+  };
+
+  const handleDrop = (e: React.DragEvent) => {
+    e.preventDefault();
+    e.stopPropagation();
+    setDragOver(false);
+    const file = e.dataTransfer.files?.[0];
+    if (file) readFile(file);
+  };
+
+  const handleDragOver = (e: React.DragEvent) => {
+    e.preventDefault();
+    e.stopPropagation();
+    setDragOver(true);
+  };
+
+  const handleDragLeave = (e: React.DragEvent) => {
+    e.preventDefault();
+    e.stopPropagation();
+    setDragOver(false);
+  };
+
+  const handleImport = async () => {
+    if (!importData.trim()) {
+      toast.error('请先选择或粘贴 JSON 备份内容');
+      return;
+    }
+    if (!summary?.valid) {
+      toast.error('当前 JSON 结构无法识别');
+      return;
+    }
+    const confirmed = typeof window === 'undefined' || typeof window.confirm !== 'function'
+      ? true
+      : window.confirm('导入会覆盖备份中的连接/路由/策略配置或系统设置，但会保留本机日志、公告、缓存和统计，确认继续？');
+    if (!confirmed) {
+      return;
+    }
+
+    setImporting(true);
+    try {
+      const parsed = JSON.parse(importData);
+      const result = await api.importBackup(parsed);
+      toast.success(buildImportSuccessMessage(result));
+      setImportData('');
+      setSelectedFileName('');
+    } catch (err: any) {
+      toast.error(err?.message || '导入失败');
+    } finally {
+      setImporting(false);
+    }
+  };
+
+  const handleSaveWebdavConfig = async () => {
+    setWebdavSaving(true);
+    try {
+      const nextPassword = webdavConfig.password.trim();
+      const payload: Record<string, unknown> = {
+        enabled: webdavConfig.enabled,
+        fileUrl: webdavConfig.fileUrl,
+        username: webdavConfig.username,
+        exportType: webdavConfig.exportType,
+        autoSyncEnabled: webdavConfig.autoSyncEnabled,
+        autoSyncCron: webdavConfig.autoSyncCron,
+      };
+      if (nextPassword) {
+        payload.password = webdavConfig.password;
+      } else if (clearWebdavPassword) {
+        payload.clearPassword = true;
+      }
+      const result = await api.saveBackupWebdavConfig(payload as any);
+      applyWebdavResponse(result);
+      toast.success('WebDAV 配置已保存');
+    } catch (err: any) {
+      toast.error(err?.message || '保存 WebDAV 配置失败');
+    } finally {
+      setWebdavSaving(false);
+    }
+  };
+
+  const handleExportToWebdav = async () => {
+    setWebdavAction('export');
+    try {
+      const result = await api.exportBackupToWebdav(webdavConfig.exportType);
+      applyWebdavResponse(result);
+      toast.success(`已导出到 WebDAV：${result?.fileUrl || webdavConfig.fileUrl}`);
+    } catch (err: any) {
+      toast.error(err?.message || '导出到 WebDAV 失败');
+    } finally {
+      setWebdavAction('');
+    }
+  };
+
+  const handleImportFromWebdav = async () => {
+    const confirmed = typeof window === 'undefined' || typeof window.confirm !== 'function'
+      ? true
+      : window.confirm('从 WebDAV 导入会覆盖备份中的连接/路由/策略配置或系统设置，但会保留本机日志、公告、缓存和统计，确认继续？');
+    if (!confirmed) return;
+    setWebdavAction('import');
+    try {
+      const result = await api.importBackupFromWebdav();
+      applyWebdavResponse(result);
+      toast.success(buildImportSuccessMessage(result));
+    } catch (err: any) {
+      toast.error(err?.message || '从 WebDAV 导入失败');
+    } finally {
+      setWebdavAction('');
+    }
+  };
+
+  return (
+    <div className="animate-fade-in">
+      <div className="page-header" style={{ alignItems: 'flex-end', marginBottom: 18 }}>
+        <div>
+          <h2 className="page-title" style={{ marginBottom: 6 }}>{tr('导入 / 导出')}</h2>
+          <div style={{ fontSize: 13, color: 'var(--color-text-muted)' }}>
+            支持配置型备份、分区备份与手动恢复。
+          </div>
+        </div>
+        <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
+          <span className="badge badge-muted" style={{ fontSize: 11 }}>Schema v2.1</span>
+          <span className="badge badge-warning" style={{ fontSize: 11 }}>敏感数据请离线保管</span>
+        </div>
+      </div>
+
+      <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit,minmax(360px,1fr))', gap: 14 }}>
+        {/* ====== 导出区 ====== */}
+        <div className="card animate-slide-up stagger-1" style={{ padding: 18 }}>
+          <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 6 }}>
+            <svg width="18" height="18" fill="none" viewBox="0 0 24 24" stroke="var(--color-primary)">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-8l-4-4m0 0L8 8m4-4v12" />
+            </svg>
+            <span style={{ fontSize: 15, fontWeight: 700 }}>导出数据</span>
+          </div>
+          <div style={{ fontSize: 12, color: 'var(--color-text-muted)', marginBottom: 14 }}>
+            将连接、路由策略与设置导出为 JSON 文件进行备份
+          </div>
+
+          <div style={{ display: 'grid', gap: 8 }}>
+            <button
+              onClick={() => handleExport('all')}
+              disabled={!!exportingType}
+              className="btn btn-primary"
+              style={{ justifyContent: 'space-between' }}
+            >
+              <span>导出全部（连接 + 路由 + 策略 + 设置）</span>
+              {exportingType === 'all' ? <span className="spinner spinner-sm" style={{ borderTopColor: 'white', borderColor: 'rgba(255,255,255,0.3)' }} /> : null}
+            </button>
+            <button
+              onClick={() => handleExport('accounts')}
+              disabled={!!exportingType}
+              className="btn btn-ghost"
+              style={{ border: '1px solid var(--color-border)', justifyContent: 'space-between' }}
+            >
+              <span>仅导出连接与路由策略</span>
+              {exportingType === 'accounts' ? <span className="spinner spinner-sm" /> : null}
+            </button>
+            <button
+              onClick={() => handleExport('preferences')}
+              disabled={!!exportingType}
+              className="btn btn-ghost"
+              style={{ border: '1px solid var(--color-border)', justifyContent: 'space-between' }}
+            >
+              <span>仅导出系统设置</span>
+              {exportingType === 'preferences' ? <span className="spinner spinner-sm" /> : null}
+            </button>
+          </div>
+        </div>
+
+        {/* ====== 导入区 ====== */}
+        <div className="card animate-slide-up stagger-2" style={{ padding: 18 }}>
+          <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 6 }}>
+            <svg width="18" height="18" fill="none" viewBox="0 0 24 24" stroke="var(--color-primary)">
+              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
+            </svg>
+            <span style={{ fontSize: 15, fontWeight: 700 }}>导入数据</span>
+          </div>
+          <div style={{ fontSize: 12, color: 'var(--color-text-muted)', marginBottom: 14 }}>
+            从备份文件恢复数据
+          </div>
+
+          <div style={{ display: 'grid', gap: 12 }}>
+            {/* ---- 拖拽上传区 ---- */}
+            <div
+              onDrop={handleDrop}
+              onDragOver={handleDragOver}
+              onDragLeave={handleDragLeave}
+              onClick={() => fileInputRef.current?.click()}
+              style={{
+                border: `2px dashed ${dragOver ? 'var(--color-primary)' : 'var(--color-border)'}`,
+                borderRadius: 'var(--radius-md)',
+                padding: '28px 20px',
+                textAlign: 'center',
+                cursor: 'pointer',
+                transition: 'all 0.2s ease',
+                background: dragOver ? 'var(--color-primary-light)' : 'var(--color-bg)',
+              }}
+            >
+              <input
+                ref={fileInputRef}
+                type="file"
+                accept=".json,application/json"
+                onChange={handleImportFile}
+                style={{ display: 'none' }}
+              />
+              {selectedFileName ? (
+                <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', gap: 8 }}>
+                  <svg width="32" height="32" fill="none" viewBox="0 0 24 24" stroke="var(--color-success)">
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
+                  </svg>
+                  <div style={{ fontSize: 13, fontWeight: 600, color: 'var(--color-text-primary)' }}>
+                    {selectedFileName}
+                  </div>
+                  <div style={{ fontSize: 12, color: 'var(--color-text-muted)' }}>
+                    点击重新选择文件
+                  </div>
+                </div>
+              ) : (
+                <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', gap: 8 }}>
+                  <svg width="36" height="36" fill="none" viewBox="0 0 24 24" stroke={dragOver ? 'var(--color-primary)' : 'var(--color-text-muted)'} style={{ transition: 'stroke 0.2s' }}>
+                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12" />
+                  </svg>
+                  <div style={{ fontSize: 13, fontWeight: 600, color: dragOver ? 'var(--color-primary)' : 'var(--color-text-secondary)' }}>
+                    {dragOver ? '松开以导入文件' : '拖拽 JSON 备份文件到此处'}
+                  </div>
+                  <div style={{ fontSize: 12, color: 'var(--color-text-muted)' }}>
+                    或 <span style={{ color: 'var(--color-primary)', fontWeight: 500 }}>点击选择文件</span>
+                  </div>
+                </div>
+              )}
+            </div>
+
+            {/* ---- 数据预览 ---- */}
+            <div>
+              <div style={{ fontSize: 13, fontWeight: 600, color: 'var(--color-text-primary)', marginBottom: 6 }}>数据预览</div>
+              <textarea
+                value={importData}
+                onChange={(e) => setImportData(e.target.value)}
+                placeholder="粘贴 JSON 数据或通过上面的拖拽区域导入..."
+                style={{
+                  width: '100%',
+                  minHeight: 100,
+                  resize: 'vertical',
+                  fontFamily: 'var(--font-mono)',
+                  fontSize: 12,
+                  padding: '10px 12px',
+                  border: '1px solid var(--color-border)',
+                  borderRadius: 'var(--radius-sm)',
+                  background: 'var(--color-bg)',
+                  color: 'var(--color-text-primary)',
+                }}
+              />
+            </div>
+
+            {/* ---- 解析摘要 ---- */}
+            {summary ? (
+              <div
+                style={{
+                  borderRadius: 'var(--radius-sm)',
+                  border: `1px solid ${summary.valid
+                    ? 'color-mix(in srgb, var(--color-success) 35%, transparent)'
+                    : 'color-mix(in srgb, var(--color-danger) 35%, transparent)'}`,
+                  background: summary.valid
+                    ? 'color-mix(in srgb, var(--color-success) 10%, transparent)'
+                    : 'color-mix(in srgb, var(--color-danger) 10%, transparent)',
+                  color: summary.valid ? 'var(--color-success)' : 'var(--color-danger)',
+                  padding: '10px 12px',
+                  fontSize: 12,
+                  lineHeight: 1.6,
+                }}
+              >
+                {summary.valid ? (
+                  <>
+                    <div>结构有效，版本：{summary.version}，时间：{summary.timestampLabel}</div>
+                    <div>包含分区：{summary.hasAccounts ? '连接与路由策略' : ''}{summary.hasAccounts && summary.hasPreferences ? ' + ' : ''}{summary.hasPreferences ? '系统设置' : ''}</div>
+                    {summary.isAllApiHubV2 ? (
+                      <>
+                        <div>检测到 ALL-API-Hub V2 兼容备份：将离线迁移可用连接。</div>
+                        <div>
+                          统计：账号 {summary.accountsCount} / 书签 {summary.bookmarksCount} / 独立 API 凭据 {summary.profilesCount}
+                        </div>
+                        {summary.ignoredSections.length ? (
+                          <div>不会原生导入：{summary.ignoredSections.join('、')}</div>
+                        ) : null}
+                      </>
+                    ) : null}
+                    {(summary.sitesCount
+                      || summary.accountsCount
+                      || summary.tokensCount
+                      || summary.routesCount
+                      || summary.channelsCount
+                      || summary.siteDisabledModelsCount
+                      || summary.manualModelsCount
+                      || summary.downstreamApiKeysCount
+                      || summary.settingsCount) ? (
+                      <div>
+                        统计：站点 {summary.sitesCount} / 账号 {summary.accountsCount} / 令牌 {summary.tokensCount} / 路由 {summary.routesCount} / 通道 {summary.channelsCount} / 站点禁用模型 {summary.siteDisabledModelsCount} / 手工模型 {summary.manualModelsCount} / 下游 Key {summary.downstreamApiKeysCount} / 设置 {summary.settingsCount}
+                      </div>
+                    ) : null}
+                    {summary.hasLegacyData ? <div>检测到兼容结构：将按兼容模式导入。</div> : null}
+                  </>
+                ) : (
+                  <div>JSON 可解析，但结构不受支持。</div>
+                )}
+              </div>
+            ) : null}
+
+            {/* ---- 操作按钮 ---- */}
+            <button
+              onClick={handleImport}
+              disabled={importing || !summary?.valid}
+              className="btn btn-primary"
+              style={{ width: '100%', padding: '10px 0', fontSize: 14, fontWeight: 600, borderRadius: 'var(--radius-sm)' }}
+            >
+              {importing ? <><span className="spinner spinner-sm" style={{ borderTopColor: 'white', borderColor: 'rgba(255,255,255,0.3)' }} /> 导入中...</> : '导入'}
+            </button>
+          </div>
+        </div>
+      </div>
+
+      <div className="card animate-slide-up stagger-3" style={{ marginTop: 14, padding: 18 }}>
+        <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 6 }}>
+          <svg width="18" height="18" fill="none" viewBox="0 0 24 24" stroke="var(--color-primary)">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 15a4 4 0 004 4h9a5 5 0 10-.1-9.999A5.002 5.002 0 006 9a4 4 0 00-3 6z" />
+          </svg>
+          <span style={{ fontSize: 15, fontWeight: 700 }}>WebDAV 同步</span>
+        </div>
+        <div style={{ fontSize: 12, color: 'var(--color-text-muted)', marginBottom: 14 }}>
+          支持手动推送、手动拉取，以及定时自动导出到 WebDAV。
+        </div>
+
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(240px, 1fr))', gap: '16px 20px' }}>
+          <div style={{ gridColumn: '1 / -1' }}>
+            <div style={formFieldLabelStyle}>文件 URL</div>
+            <input
+              value={webdavConfig.fileUrl}
+              onChange={(e) => setWebdavConfig((prev) => ({ ...prev, fileUrl: e.target.value }))}
+              placeholder="https://dav.example.com/backups/boosapi.json"
+              style={settingsInputStyle}
+            />
+          </div>
+          <div>
+            <div style={formFieldLabelStyle}>用户名</div>
+            <input
+              value={webdavConfig.username}
+              onChange={(e) => setWebdavConfig((prev) => ({ ...prev, username: e.target.value }))}
+              placeholder="可留空"
+              style={settingsInputStyle}
+            />
+          </div>
+          <div>
+            <div style={formFieldLabelStyle}>密码</div>
+            <input
+              type="password"
+              value={webdavConfig.password}
+              onChange={(e) => {
+                const nextPassword = e.target.value;
+                setWebdavConfig((prev) => ({ ...prev, password: nextPassword }));
+                if (nextPassword.trim()) {
+                  setClearWebdavPassword(false);
+                }
+              }}
+              placeholder={clearWebdavPassword
+                ? '保存后将清空已存密码'
+                : (webdavConfig.hasPassword ? `已保存 ${webdavConfig.passwordMasked}，留空则保持不变` : '请输入密码')}
+              disabled={clearWebdavPassword}
+              style={settingsInputStyle}
+            />
+            {webdavConfig.hasPassword ? (
+              <label style={{ ...webdavToggleStyle, marginTop: 8, fontSize: 12, color: 'var(--color-text-secondary)' }}>
+                <input
+                  type="checkbox"
+                  checked={clearWebdavPassword}
+                  onChange={(e) => {
+                    const checked = e.target.checked === true;
+                    setClearWebdavPassword(checked);
+                    if (checked) {
+                      setWebdavConfig((prev) => ({ ...prev, password: '' }));
+                    }
+                  }}
+                  style={{ width: 16, height: 16, cursor: 'pointer', accentColor: 'var(--color-primary)' }}
+                />
+                清空已保存密码
+              </label>
+            ) : null}
+          </div>
+          <div>
+            <div style={formFieldLabelStyle}>导出分区</div>
+            <ModernSelect
+              value={webdavConfig.exportType}
+              onChange={(value) => setWebdavConfig((prev) => ({ ...prev, exportType: value as BackupType }))}
+              options={[...WEBDAV_EXPORT_TYPE_OPTIONS]}
+            />
+          </div>
+          <div>
+            <div style={formFieldLabelStyle}>自动同步 Cron</div>
+            <input
+              value={webdavConfig.autoSyncCron}
+              onChange={(e) => setWebdavConfig((prev) => ({ ...prev, autoSyncCron: e.target.value }))}
+              placeholder="0 */6 * * *"
+              style={{ ...settingsInputStyle, fontFamily: 'var(--font-mono)' }}
+            />
+          </div>
+        </div>
+
+        <div style={{ display: 'flex', gap: 16, flexWrap: 'wrap', marginTop: 16 }}>
+          <label
+            style={{
+              ...webdavToggleStyle,
+              color: webdavConfig.enabled ? 'var(--color-primary)' : 'var(--color-text-secondary)',
+            }}
+          >
+            <input
+              type="checkbox"
+              checked={webdavConfig.enabled}
+              onChange={(e) => setWebdavConfig((prev) => ({ ...prev, enabled: e.target.checked }))}
+              style={{ width: 16, height: 16, cursor: 'pointer', accentColor: 'var(--color-primary)' }}
+            />
+            启用 WebDAV
+          </label>
+          <label
+            style={{
+              ...webdavToggleStyle,
+              color: webdavConfig.autoSyncEnabled ? 'var(--color-primary)' : 'var(--color-text-secondary)',
+            }}
+          >
+            <input
+              type="checkbox"
+              checked={webdavConfig.autoSyncEnabled}
+              onChange={(e) => setWebdavConfig((prev) => ({ ...prev, autoSyncEnabled: e.target.checked }))}
+              style={{ width: 16, height: 16, cursor: 'pointer', accentColor: 'var(--color-primary)' }}
+            />
+            自动同步
+          </label>
+        </div>
+
+        <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap', marginTop: 14 }}>
+          <button
+            onClick={handleSaveWebdavConfig}
+            disabled={webdavSaving}
+            className="btn btn-primary"
+          >
+            {webdavSaving ? '保存中...' : '保存 WebDAV 配置'}
+          </button>
+          <button
+            onClick={handleExportToWebdav}
+            disabled={webdavAction !== '' || webdavSaving || webdavConfigDirty}
+            className="btn btn-ghost"
+            style={{ border: '1px solid var(--color-border)' }}
+          >
+            {webdavAction === 'export' ? '导出中...' : '立即导出到 WebDAV'}
+          </button>
+          <button
+            onClick={handleImportFromWebdav}
+            disabled={webdavAction !== '' || webdavSaving || webdavConfigDirty}
+            className="btn btn-ghost"
+            style={{ border: '1px solid var(--color-border)' }}
+          >
+            {webdavAction === 'import' ? '拉取中...' : '从 WebDAV 拉取'}
+          </button>
+        </div>
+
+        {webdavConfigDirty ? (
+          <div style={{ marginTop: 10, fontSize: 12, color: 'var(--color-warning)' }}>
+            当前 WebDAV 配置有未保存改动，请先保存后再执行导入或导出。
+          </div>
+        ) : null}
+
+        <div style={{ marginTop: 12, fontSize: 12, color: 'var(--color-text-secondary)', lineHeight: 1.7 }}>
+          <div>上次同步：{webdavState.lastSyncAt ? new Date(webdavState.lastSyncAt).toLocaleString() : '尚未同步'}</div>
+          <div>最近错误：{webdavState.lastError || '无'}</div>
+        </div>
+      </div>
+
+      <div className="card animate-slide-up stagger-4" style={{ marginTop: 14, padding: 16 }}>
+        <div style={{ fontSize: 14, fontWeight: 700, marginBottom: 8 }}>注意事项</div>
+        <div style={{ fontSize: 12, color: 'var(--color-text-secondary)', lineHeight: 1.75 }}>
+          <div>1. 导入连接分区会覆盖备份中的站点、账号、令牌、路由、禁用模型、手工模型和下游 Key 配置。</div>
+          <div>2. 覆盖备份中的连接/路由/策略配置，但会保留本机日志、公告、缓存和统计。</div>
+          <div>3. 为避免锁死管理界面，管理员登录令牌（`auth_token`）不会从备份导入。</div>
+          <div>4. 建议先导出一份"全部备份"再执行导入操作。</div>
+        </div>
+      </div>
+    </div>
+  );
+}