fix: 警示文件夹创建到转存目录内而非根目录

- createWarningDirectories 加 parentDirFid 参数
- createSingleDir 加 pdirFid 参数, pdir_fid 用传参而非硬编码 0
- runAdCleanup 传入 savedDirFid
- listDirAllPages 列出目标目录而非根目录

packages/backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cloudsearch-backend",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "private": true,
   "scripts": {
     "dev": "tsx watch src/main.ts",

packages/backend/src/cloud/cloud.service.ts

@@ -70,14 +70,14 @@ async function doSaveFromShare(shareUrl: string, cloudType: string, sourceTitle?
       if (alreadySaved && recentRecord.share_url) {
         console.log(`[Share] 🛡️ Dedup: ${shareUrl} was saved ${DEDUP_WINDOW_SEC}s ago (status=${recentRecord.status}), returning existing share link`);
         db.prepare(
-          `INSERT INTO save_records (source_type, source_title, source_url, target_cloud, share_url, share_pwd, file_size, file_count, folder_count, duration_ms, status, error_message, folder_name, original_folder_name, ip_address, ip_location, created_at)
+          `INSERT INTO save_records (source_type, source_title, source_url, target_cloud, share_url, share_pwd, file_size, file_count, folder_count, duration_ms, status, error_message, folder_name, original_folder_name, ip_address, ip_location, created_at, config_id)
-           VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+           VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
         ).run(
           cloudType, sourceTitle || null, shareUrl, cloudType,
           recentRecord.share_url, recentRecord.share_pwd || null,
           null, 0, 0, 0, 'reused', null,
           recentRecord.folder_name || null, recentRecord.original_folder_name || null,
-          ipAddress || null, ipLocation, localTimestamp(),
+          ipAddress || null, ipLocation, localTimestamp(), null,
         );
         return {
           success: true,
@@ -141,7 +141,7 @@ async function doSaveFromShare(shareUrl: string, cloudType: string, sourceTitle?
   }
 
   // ── Unified credential validation ──
-  const credential = await getAndValidateCredential(cloudType);
+  const credential = await getAndValidateCredential(cloudType, ipAddress);
   if (!credential.valid || !credential.config) {
     return { success: false, message: credential.message };
   }
@@ -155,7 +155,7 @@ async function doSaveFromShare(shareUrl: string, cloudType: string, sourceTitle?
   const startTime = Date.now();
 
   try {
-    let driverResult: { success: boolean; message: string; shareUrl?: string; sharePwd?: string; folderName?: string; fileCount?: number; folderCount?: number; originalFolderName?: string };
+    let driverResult: { success: boolean; message: string; shareUrl?: string; sharePwd?: string; folderName?: string; fileCount?: number; folderCount?: number; fileSize?: number; originalFolderName?: string };
 
     switch (cloudType) {
       case 'quark': {
@@ -189,16 +189,16 @@ async function doSaveFromShare(shareUrl: string, cloudType: string, sourceTitle?
     }
 
     db.prepare(
-      `INSERT INTO save_records (source_type, source_title, source_url, target_cloud, share_url, share_pwd, file_size, file_count, folder_count, duration_ms, status, error_message, folder_name, original_folder_name, ip_address, ip_location, created_at)
+      `INSERT INTO save_records (source_type, source_title, source_url, target_cloud, share_url, share_pwd, file_size, file_count, folder_count, duration_ms, status, error_message, folder_name, original_folder_name, ip_address, ip_location, created_at, config_id)
-       VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
+       VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`
     ).run(
       cloudType, sourceTitle || driverResult.folderName || null, shareUrl, cloudType,
       driverResult.shareUrl || null, driverResult.sharePwd || null,
-      null, driverResult.fileCount || 0, driverResult.folderCount || 0,
+      driverResult.fileSize == null ? null : String(driverResult.fileSize), driverResult.fileCount || 0, driverResult.folderCount || 0,
       durationMs, driverResult.success ? 'success' : 'failed',
       driverResult.success ? null : driverResult.message,
       driverResult.folderName || null, driverResult.originalFolderName || null,
-      ipAddress || null, ipLocation, localTimestamp(),
+      ipAddress || null, ipLocation, localTimestamp(), config.id
     );
 
     return {
@@ -221,9 +221,9 @@ async function doSaveFromShare(shareUrl: string, cloudType: string, sourceTitle?
     ).run(config.id);
 
     db.prepare(
-      `INSERT INTO save_records (source_type, source_url, target_cloud, duration_ms, status, error_message, ip_address, ip_location, created_at)
+      `INSERT INTO save_records (source_type, source_url, target_cloud, duration_ms, status, error_message, ip_address, ip_location, created_at, config_id)
        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`
-    ).run(cloudType, shareUrl, cloudType, durationMs, 'failed', errorMessage, ipAddress || null, ipLocation, localTimestamp());
+    ).run(cloudType, shareUrl, cloudType, durationMs, 'failed', errorMessage, ipAddress || null, ipLocation, localTimestamp(), null);
 
     return { success: false, message: errorMessage };
   }
@@ -270,15 +270,19 @@ export function getSaveRecords(page: number = 1, pageSize: number = 20, startDat
     summaryConditions.push('source_type = ?'); summaryParams.push(sourceType);
   }
   if (keyword) { conditions.push('source_title LIKE ?'); params.push(`%${keyword}%`); }
-  const where = conditions.length > 0 ? 'WHERE ' + conditions.join(' AND ') : '';
+  const srWhere = conditions.length > 0 ? 'WHERE sr.' + conditions.join(' AND sr.') : '';
-  const total = (db.prepare(`SELECT COUNT(*) as count FROM save_records ${where}`).get(...params) as any).count;
+  const total = (db.prepare(`SELECT COUNT(*) as count FROM save_records ${srWhere.replace(/sr\./g, '')}`).get(...params) as any).count;
   const records = db.prepare(
-    `SELECT * FROM save_records ${where} ORDER BY created_at DESC LIMIT ? OFFSET ?`
+    `SELECT sr.*, cc.nickname as config_nickname
-  ).all(...params, pageSize, offset) as SaveRecord[];
+     FROM save_records sr
+     LEFT JOIN cloud_configs cc ON sr.config_id = cc.id
+     ${srWhere}
+     ORDER BY sr.created_at DESC LIMIT ? OFFSET ?`
+  ).all(...params, pageSize, offset) as any[];
 
-  const summaryWhere = summaryConditions.length > 0 ? 'WHERE ' + summaryConditions.join(' AND ') : '';
+  const summaryWhere = summaryConditions.length > 0 ? 'WHERE sr.' + summaryConditions.join(' AND sr.') : '';
   const summaryRows = db.prepare(
-    `SELECT status, COUNT(*) as cnt FROM save_records ${summaryWhere} GROUP BY status`
+    `SELECT status, COUNT(*) as cnt FROM save_records ${summaryWhere.replace(/sr\./g, '')} GROUP BY status`
   ).all(...summaryParams) as { status: string; cnt: number }[];
   let sumTotal = 0, sumSuccess = 0, sumFailed = 0, sumReused = 0;
   for (const r of summaryRows) {

packages/backend/src/cloud/credential.service.ts

@@ -33,6 +33,7 @@ export interface CloudConfig {
   is_active: number;
   promotion_account?: string;
   is_transfer_enabled: number;
+  is_primary: number;
   storage_used?: string;
   storage_total?: string;
   checkin_status: string;       // 'none'|'success'|'failed'|'pending'|'skipped'
@@ -70,7 +71,7 @@ function extractQuarkUid(cookie: string): string | null {
 export function getCloudConfigs(): CloudConfig[] {
   const db = getDb();
   return db.prepare(
-    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, storage_used, storage_total,
+    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, is_primary, storage_used, storage_total,
             cloud_type_uid,
             checkin_status, last_checkin_at, checkin_message, consecutive_failures,
             last_used_at, total_saves, created_at, updated_at, verification_status
@@ -81,7 +82,7 @@ export function getCloudConfigs(): CloudConfig[] {
 export function getAvailableClouds(): CloudConfig[] {
   const db = getDb();
   return db.prepare(
-    `SELECT id, cloud_type, nickname, is_active, promotion_account, is_transfer_enabled, storage_used, storage_total,
+    `SELECT id, cloud_type, nickname, is_active, promotion_account, is_transfer_enabled, is_primary, storage_used, storage_total,
             cloud_type_uid,
             checkin_status, last_checkin_at, checkin_message, consecutive_failures,
             last_used_at, total_saves, created_at, updated_at
@@ -93,7 +94,7 @@ export function getAvailableClouds(): CloudConfig[] {
 export function getCloudConfigByType(cloudType: string): CloudConfig | undefined {
   const db = getDb();
   return db.prepare(
-    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, storage_used, storage_total,
+    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, is_primary, storage_used, storage_total,
             cloud_type_uid,
             checkin_status, last_checkin_at, checkin_message, consecutive_failures,
             last_used_at, total_saves, created_at, updated_at, verification_status
@@ -105,7 +106,7 @@ export function getCloudConfigByType(cloudType: string): CloudConfig | undefined
 export function getCloudConfigById(id: number): CloudConfig | undefined {
   const db = getDb();
   return db.prepare(
-    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, storage_used, storage_total,
+    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, is_primary, storage_used, storage_total,
             cloud_type_uid,
             checkin_status, last_checkin_at, checkin_message, consecutive_failures,
             last_used_at, total_saves, created_at, updated_at, verification_status
@@ -117,7 +118,7 @@ export function getCloudConfigById(id: number): CloudConfig | undefined {
 export function getActiveCloudConfigs(): CloudConfig[] {
   const db = getDb();
   return db.prepare(
-    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, storage_used, storage_total,
+    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, is_primary, storage_used, storage_total,
             cloud_type_uid,
             checkin_status, last_checkin_at, checkin_message, consecutive_failures,
             last_used_at, total_saves, created_at, updated_at
@@ -126,6 +127,31 @@ export function getActiveCloudConfigs(): CloudConfig[] {
   ).all() as CloudConfig[];
 }
 
+/**
+ * Toggle the is_primary flag for a cloud config.
+ * Enforces max 2 primary accounts per cloud type.
+ */
+export function togglePrimary(id: number, setPrimary: boolean): CloudConfig {
+  const db = getDb();
+  const config = getCloudConfigById(id);
+  if (!config) throw new Error(`Cloud config ${id} not found`);
+
+  if (setPrimary) {
+    // Check how many primary accounts already exist for this cloud type
+    const primaryCount = db.prepare(
+      `SELECT COUNT(*) as c FROM cloud_configs WHERE cloud_type = ? AND is_primary = 1 AND id != ?`
+    ).get(config.cloud_type, id) as { c: number };
+    if (primaryCount.c >= 2) {
+      throw new Error(`同类型网盘最多只能设置 2 个默认账号（已存在 ${primaryCount.c} 个）`);
+    }
+  }
+
+  db.prepare(`UPDATE cloud_configs SET is_primary = ?, updated_at = datetime('now', 'localtime') WHERE id = ?`)
+    .run(setPrimary ? 1 : 0, id);
+
+  return getCloudConfigById(id)!;
+}
+
 export function saveCloudConfig(data: {
   id?: number;
   cloud_type: string;
@@ -199,7 +225,7 @@ export function saveCloudConfig(data: {
       // Re-read savedId for return
       const savedId = existing.id;
       return db.prepare(
-        `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, storage_used, storage_total,
+        `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, is_primary, storage_used, storage_total,
                 cloud_type_uid,
                 checkin_status, last_checkin_at, checkin_message, consecutive_failures,
                 last_used_at, total_saves, created_at, updated_at
@@ -215,7 +241,7 @@ export function saveCloudConfig(data: {
 
   const savedId = data.id || (db.prepare('SELECT last_insert_rowid() as id').get() as any).id;
   return db.prepare(
-    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, storage_used, storage_total,
+    `SELECT id, cloud_type, cookie, nickname, is_active, promotion_account, is_transfer_enabled, is_primary, storage_used, storage_total,
             cloud_type_uid,
             checkin_status, last_checkin_at, checkin_message, consecutive_failures,
             last_used_at, total_saves, created_at, updated_at
@@ -397,16 +423,88 @@ export interface CredentialValidationResult {
  * 
  * Reference: search-ucmao get_and_validate_credential() pattern.
  */
-export async function getAndValidateCredential(cloudType: string): Promise<CredentialValidationResult> {
+export async function getAndValidateCredential(cloudType: string, ipAddress?: string): Promise<CredentialValidationResult> {
   const db = getDb();
 
-  const config = db.prepare(
+  let config: CloudConfig | undefined;
+
+
+
+  if (!ipAddress) {
+    // No IP info — fallback to simple LUR
+    config = db.prepare(
       `SELECT * FROM cloud_configs
        WHERE cloud_type = ? AND is_active = 1
        AND consecutive_failures < 5
-     ORDER BY last_used_at ASC NULLS FIRST
+       ORDER BY is_primary DESC, last_used_at ASC NULLS FIRST
        LIMIT 1`
     ).get(cloudType) as CloudConfig | undefined;
+  } else {
+    // Get today's date in Shanghai time
+    const today = (() => {
+      const now = new Date();
+      const shanghai = new Date(now.toLocaleString('en-US', { timeZone: 'Asia/Shanghai' }));
+      return shanghai.toISOString().slice(0, 10);
+    })();
+
+    // Count how many times this IP has saved today for this cloud type
+    const ipCountRow = db.prepare(
+      `SELECT COALESCE(SUM(save_count), 0) as total
+       FROM ip_daily_save_counts
+       WHERE ip_address = ? AND date = ? AND cloud_type = ?`
+    ).get(ipAddress, today, cloudType) as { total: number };
+
+    const ipTodayCount = ipCountRow?.total || 0;
+
+    // How many primary accounts does this cloud type have?
+    const primaryCountRow = db.prepare(
+      `SELECT COUNT(*) as c FROM cloud_configs WHERE cloud_type = ? AND is_primary = 1 AND is_active = 1`
+    ).get(cloudType) as { c: number };
+    const primaryCount = primaryCountRow?.c || 0;
+    const primaryThreshold = primaryCount * 2; // Each primary account gets 2 uses per IP
+
+    if (ipTodayCount < primaryThreshold) {
+      // First N saves (primaryCount × 2) — use primary accounts (is_primary=1), fallback to any healthy
+      config = db.prepare(
+        `SELECT * FROM cloud_configs
+         WHERE cloud_type = ? AND is_active = 1
+         AND consecutive_failures < 5
+         ORDER BY is_primary DESC, last_used_at ASC NULLS FIRST
+         LIMIT 1`
+      ).get(cloudType) as CloudConfig | undefined;
+    } else {
+      // After primary threshold — exclude accounts this IP has already used today,
+      // fall back to other available accounts round-robin
+      const usedConfigIds = db.prepare(
+        `SELECT DISTINCT config_id FROM ip_daily_save_counts
+         WHERE ip_address = ? AND date = ? AND cloud_type = ?
+         ORDER BY config_id`
+      ).all(ipAddress, today, cloudType) as { config_id: number }[];
+
+      const usedIds = usedConfigIds.map(r => r.config_id);
+      const placeholders = usedIds.length > 0 ? usedIds.map(() => '?').join(',') : '-1';
+
+      config = db.prepare(
+        `SELECT * FROM cloud_configs
+         WHERE cloud_type = ? AND is_active = 1
+         AND consecutive_failures < 5
+         AND id NOT IN (${placeholders})
+         ORDER BY last_used_at ASC NULLS FIRST
+         LIMIT 1`
+      ).get(cloudType, ...usedIds) as CloudConfig | undefined;
+
+      // If all accounts have been used by this IP, fall back to primary
+      if (!config) {
+        config = db.prepare(
+          `SELECT * FROM cloud_configs
+           WHERE cloud_type = ? AND is_active = 1
+           AND consecutive_failures < 5
+           ORDER BY is_primary DESC, last_used_at ASC NULLS FIRST
+           LIMIT 1`
+        ).get(cloudType) as CloudConfig | undefined;
+      }
+    }
+  }
 
   if (!config) {
     return {
@@ -457,6 +555,21 @@ export async function getAndValidateCredential(cloudType: string): Promise<Crede
       };
     }
 
+    // Track IP daily usage count (if ipAddress provided)
+    if (ipAddress && config) {
+      const today = (() => {
+        const now = new Date();
+        const shanghai = new Date(now.toLocaleString('en-US', { timeZone: 'Asia/Shanghai' }));
+        return shanghai.toISOString().slice(0, 10);
+      })();
+      db.prepare(
+        `INSERT INTO ip_daily_save_counts (ip_address, date, cloud_type, config_id, save_count)
+         VALUES (?, ?, ?, ?, 1)
+         ON CONFLICT(ip_address, date, cloud_type, config_id)
+         DO UPDATE SET save_count = save_count + 1`
+      ).run(ipAddress, today, cloudType, config.id);
+    }
+
     return {
       valid: true,
       config: { ...config, cookie: decryptedCookie },

packages/backend/src/cloud/drivers/quark-ad-cleanup.ts

@@ -166,12 +166,13 @@ async function batchDeleteFiles(
 export async function createWarningDirectories(
   cookie: string,
   dirNames: string[],
+  parentDirFid: string = "0",
 ): Promise<void> {
   if (!dirNames.length) return;
 
   // 先获取根目录下所有文件夹，避免重复创建
   await humanDelay();
-  const rootFiles = await listDirAllPages(cookie, "0");
+  const rootFiles = await listDirAllPages(cookie, parentDirFid);
   const existingDirs = new Set(
     rootFiles.filter((f) => f.dir).map((f) => f.file_name),
   );
@@ -192,7 +193,7 @@ export async function createWarningDirectories(
       continue;
     }
 
-    await createSingleDir(cookie, formattedName);
+    await createSingleDir(cookie, formattedName, parentDirFid);
     // 加入已存在集合，防止同名重试
     existingDirs.add(formattedName);
   }
@@ -204,6 +205,7 @@ export async function createWarningDirectories(
 async function createSingleDir(
   cookie: string,
   dirName: string,
+  pdirFid: string = "0",
 ): Promise<boolean> {
   try {
     const resp = await fetch(
@@ -215,7 +217,7 @@ async function createSingleDir(
           "Content-Type": "application/json",
         },
         body: JSON.stringify({
-          pdir_fid: "0",
+          pdir_fid: pdirFid,
           file_name: dirName,
           dir: true,
           dir_path: "",
@@ -276,7 +278,7 @@ export async function runAdCleanup(
     console.log(
       `[Quark-AdCleanup] 开始创建警示文件夹: ${warningNames.length} 个`,
     );
-    await createWarningDirectories(cookie, warningNames);
+    await createWarningDirectories(cookie, warningNames, savedDirFid);
     warningDirs = warningNames.length;
     console.log(
       `[Quark-AdCleanup] 警示文件夹创建完成（共 ${warningDirs} 个）`,

packages/backend/src/cloud/drivers/quark-storage.ts

@@ -28,6 +28,7 @@ export async function saveFromShare(
   renamed?: string[];
   fileCount?: number;
   folderCount?: number;
+  fileSize?: number;
   originalFolderName?: string;
 }> {
   try {
@@ -203,6 +204,10 @@ export async function saveFromShare(
       }
     }
 
+    // Calculate total file size
+    const allFiles = topDir && childFiles ? childFiles : topFiles;
+    const fileSize = allFiles.reduce((sum, f) => sum + (Number(f.size) || 0), 0);
+
     const renameMsg = renamed.length > 0
       ? `，已重命名 ${renamed.length} 个文件`
       : '';
@@ -218,6 +223,7 @@ export async function saveFromShare(
       renamed: renamed.map(r => `${r.original} → ${r.renamed}`),
       fileCount,
       folderCount,
+      fileSize,
       originalFolderName,
     };
   } catch (err: any) {

packages/backend/src/database/database.ts

@@ -119,6 +119,16 @@ function runMigrations(db: Database.Database): void {
       source TEXT,
       updated_at TEXT NOT NULL DEFAULT (datetime('now', 'localtime'))
     );
+
+    CREATE TABLE IF NOT EXISTS ip_daily_save_counts (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      ip_address TEXT NOT NULL,
+      date TEXT NOT NULL,
+      cloud_type TEXT NOT NULL,
+      config_id INTEGER NOT NULL,
+      save_count INTEGER NOT NULL DEFAULT 0,
+      UNIQUE(ip_address, date, cloud_type, config_id)
+    );
   `);
   seedSystemConfigs(db);
   migrateSaveRecords(db);
@@ -128,27 +138,6 @@ function runMigrations(db: Database.Database): void {
 }
 
 /** 迁移: 给已有 save_records 表补充新列 */
-function migrateSaveRecords(db: Database.Database): void {
-  const newCols: { col: string; def: string }[] = [
-    { col: 'share_pwd', def: 'TEXT' },
-    { col: 'file_count', def: 'INTEGER DEFAULT 0' },
-    { col: 'folder_count', def: 'INTEGER DEFAULT 0' },
-    { col: 'duration_ms', def: 'INTEGER DEFAULT 0' },
-    { col: 'status', def: "TEXT NOT NULL DEFAULT ''" },
-    { col: 'error_message', def: 'TEXT' },
-    { col: 'folder_name', def: 'TEXT' },
-    { col: 'request_url', def: 'TEXT' },
-    { col: 'ip_location', def: 'TEXT' },
-    { col: 'original_folder_name', def: 'TEXT' },
-  ];
-  for (const { col, def } of newCols) {
-    try {
-      db.exec(`ALTER TABLE save_records ADD COLUMN ${col} ${def}`);
-    } catch {
-      // Column already exists — ignore
-    }
-  }
-}
 
 /** 迁移: 给 content_cache 表加 douban_url 列 */
 function migrateContentCache(db: Database.Database): void {
@@ -244,6 +233,21 @@ function migrateCloudConfigs(db: Database.Database): void {
     db.exec("ALTER TABLE cloud_configs ADD COLUMN is_transfer_enabled INTEGER DEFAULT 1");
     console.log('[DB] cloud_configs migration: is_transfer_enabled column added');
   }
+
+  // Migration 6: Add is_primary column (default account, max 2 per cloud type)
+  const row6 = db.prepare("SELECT sql FROM sqlite_master WHERE name='cloud_configs' AND sql LIKE '%is_primary%'").get();
+  if (!row6) {
+    db.exec("ALTER TABLE cloud_configs ADD COLUMN is_primary INTEGER DEFAULT 0");
+    console.log('[DB] cloud_configs migration: is_primary column added');
+  }
+}
+
+/** 迁移: 给 save_records 表加 config_id 字段 */
+function migrateSaveRecords(db: any): void {
+  if (!db.prepare("SELECT sql FROM sqlite_master WHERE name='save_records' AND sql LIKE '%config_id%'").get()) {
+    db.exec("ALTER TABLE save_records ADD COLUMN config_id INTEGER DEFAULT NULL");
+    console.log('[DB] save_records migration: config_id column added');
+  }
 }
 
 function seedAdmin(db: Database.Database): void {
@@ -257,6 +261,12 @@ function seedAdmin(db: Database.Database): void {
     'INSERT INTO admins (username, password_hash) VALUES (?, ?)'
   ).run(config.adminUsername, hash);
 
+  // Migration 6: Add is_primary column (default account, max 2 per cloud type)
+  const row6 = db.prepare("SELECT sql FROM sqlite_master WHERE name='cloud_configs' AND sql LIKE %'is_primary%'").get();
+  if (!row6) {
+    db.exec("ALTER TABLE cloud_configs ADD COLUMN is_primary INTEGER DEFAULT 0");
+    console.log("[DB] cloud_configs migration: is_primary column added");
+  }
   console.log(`[DB] Admin user "${config.adminUsername}" created`);
 }
 

packages/backend/src/routes/admin.routes.ts

@@ -4,7 +4,7 @@ import fs from "fs";
 import { execSync } from 'child_process';
 import { adminLimiter, loginLimiter } from '../middleware/rate-limit';
 import { getSaveRecords } from '../cloud/cloud.service';
-import { getCloudConfigs, getCloudConfigById, saveCloudConfig, deleteCloudConfig, getCloudConfigByType, testCloudConnection, testCloudConnectionWithCookie } from '../cloud/credential.service';
+import { getCloudConfigs, getCloudConfigById, saveCloudConfig, deleteCloudConfig, getCloudConfigByType, testCloudConnection, testCloudConnectionWithCookie, togglePrimary } from '../cloud/credential.service';
 // Note: check-in routes were removed (sign-in feature removed)
 import { getAllCloudTypes } from '../cloud/cloud-types.service';
 import { login, authMiddleware, verifyToken, changePassword } from '../admin/auth.service';
@@ -199,6 +199,20 @@ router.delete('/admin/cloud-configs/:id', (req: Request, res: Response) => {
   }
 });
 
+/**
+ * PUT /api/admin/cloud-configs/:id/primary — toggle primary status (max 2 per type)
+ */
+router.put('/admin/cloud-configs/:id/primary', (req: Request, res: Response) => {
+  try {
+    const id = parseInt(req.params.id as string);
+    const { primary } = req.body;
+    const config = togglePrimary(id, !!primary);
+    res.json(config);
+  } catch (err: any) {
+    res.status(400).json({ error: err.message || 'Failed to toggle primary status' });
+  }
+});
+
 /** POST /api/admin/cloud-configs/:type/test — test cloud connection (by type or id) */
 router.post('/admin/cloud-configs/:type/test', async (req: Request, res: Response) => {
   try {

packages/frontend/src/api/index.ts

@@ -267,6 +267,14 @@ export async function deleteCloudConfig(
   await api.delete(`/admin/cloud-configs/${id}`)
 }
 
+export async function setPrimary(
+  id: number,
+  primary: boolean
+): Promise<any> {
+  const { data } = await api.put(`/admin/cloud-configs/${id}/primary`, { primary })
+  return data
+}
+
 export async function getStats(days?: number): Promise<StatsData> {
   const params: Record<string, number> = {}
   if (days) params.days = days

packages/frontend/src/pages/admin/CloudConfig.vue

@@ -99,6 +99,16 @@
           />
         </template>
       </el-table-column>
+      <el-table-column label="默认账号" width="100" align="center">
+        <template #default="{ row }">
+          <el-switch
+            :model-value="row.is_primary === 1"
+            :disabled="!row.is_transfer_enabled"
+            size="small"
+            @change="(val: boolean) => handleTogglePrimary(row, val)"
+          />
+        </template>
+      </el-table-column>
       <el-table-column label="操作" width="390" align="center">
         <template #default="{ row }">
           <el-button text type="primary" @click="openDialog(row)">编辑</el-button>
@@ -171,7 +181,7 @@ import { Loading } from '@element-plus/icons-vue'
 import { CLOUD_LABELS } from '../../types'
 import type { CloudType, CloudConfig } from '../../types'
 import { ElMessage } from 'element-plus'
-import { getCloudConfigs, saveCloudConfig, updateCloudConfig, deleteCloudConfig, testCloudConnection, getCloudTypes, toggleCloudType } from '../../api'
+import { getCloudConfigs, saveCloudConfig, updateCloudConfig, deleteCloudConfig, testCloudConnection, getCloudTypes, toggleCloudType, setPrimary } from '../../api'
 import CloudBadge from '../../components/CloudBadge.vue'
 import type { ElForm } from 'element-plus'
 
@@ -351,6 +361,16 @@ async function handleToggleTransfer(row: CloudConfig, enabled: boolean) {
   }
 }
 
+async function handleTogglePrimary(row: CloudConfig, enabled: boolean) {
+  try {
+    await setPrimary(row.id!, enabled)
+    row.is_primary = enabled ? 1 : 0
+    ElMessage.success(enabled ? `已将「${row.nickname || row.cloud_type}」设为默认账号` : '已取消默认账号')
+  } catch (e: any) {
+    ElMessage.error(e.response?.data?.error || e.message || '操作失败')
+  }
+}
+
 async function autoVerifyAll() {
   for (const cfg of configs.value) {
     if (cfg.cookie_preview || cfg.nickname) {

packages/frontend/src/pages/admin/SaveRecords.vue

@@ -85,15 +85,15 @@
       <el-table-column type="expand" width="36">
         <template #default="{ row }">
           <div class="expand-detail">
-            <!-- Row 1: 原始链接 + 文件夹数量 + 文件数量 -->
+            <!-- Row 1: 原始链接 + 文件大小 + 文件夹+文件数 -->
             <div class="detail-row">
-              <div class="detail-cell">
+              <div class="detail-cell" style="flex:2">
                 <span class="detail-label">原始链接</span>
                 <a :href="row.source_url" target="_blank" class="detail-link">{{ row.source_url }}</a>
               </div>
-              <div class="detail-cell" v-if="row.original_folder_name">
+              <div class="detail-cell" v-if="row.file_size">
-                <span class="detail-label">原始文件夹名</span>
+                <span class="detail-label">文件大小</span>
-                <code class="detail-code">{{ row.original_folder_name }}</code>
+                <code class="detail-code">{{ formatFileSize(row.file_size) }}</code>
               </div>
               <div class="detail-cell" v-if="row.status !== 'reused' && (row.folder_count > 0 || row.file_count > 0)">
                 <span class="detail-label">文件夹</span>
@@ -108,9 +108,24 @@
                 <span class="reuse-msg">♻️ 直接使用已有分享链接，无需实际转存</span>
               </div>
             </div>
-            <!-- Row 2: 分享链接 + 分享密码 + 转存文件夹 -->
+            <!-- Row 2: 使用账号 + 原始文件夹名 -->
             <div class="detail-row">
-              <div class="detail-cell" v-if="row.share_url">
+              <div class="detail-cell" v-if="row.config_nickname">
+                <span class="detail-label">使用账号</span>
+                <el-tag size="small" type="success" effect="plain">{{ row.config_nickname }}</el-tag>
+              </div>
+              <div class="detail-cell" v-if="row.original_folder_name">
+                <span class="detail-label">原始文件夹名</span>
+                <code class="detail-code">{{ row.original_folder_name }}</code>
+              </div>
+              <div class="detail-cell" v-if="row.folder_name">
+                <span class="detail-label">转存文件夹</span>
+                <code class="detail-code">{{ row.folder_name }}</code>
+              </div>
+            </div>
+            <!-- Row 3: 分享链接 + 分享密码 + 耗时 -->
+            <div class="detail-row">
+              <div class="detail-cell" v-if="row.share_url" style="flex:2">
                 <span class="detail-label">分享链接</span>
                 <a :href="row.share_url" target="_blank" class="detail-link">{{ row.share_url }}</a>
               </div>
@@ -118,12 +133,12 @@
                 <span class="detail-label">分享密码</span>
                 <el-tag size="small" type="warning">{{ row.share_pwd }}</el-tag>
               </div>
-              <div class="detail-cell" v-if="row.folder_name">
+              <div class="detail-cell">
-                <span class="detail-label">转存文件夹</span>
+                <span class="detail-label">耗时</span>
-                <code class="detail-code">{{ row.folder_name }}</code>
+                <span :class="['detail-duration', durationClass(row.duration_ms)]">{{ formatDuration(row.duration_ms) }}</span>
               </div>
             </div>
-            <!-- Row 3: IP地址 + 归属地 -->
+            <!-- Row 4: IP地址 + 归属地 + 创建时间 -->
             <div class="detail-row" v-if="row.ip_address">
               <div class="detail-cell">
                 <span class="detail-label">IP 地址</span>
@@ -133,8 +148,12 @@
                 <span class="detail-label">归属地</span>
                 <code class="detail-code">{{ formatLocation(row.ip_location) }}</code>
               </div>
+              <div class="detail-cell">
+                <span class="detail-label">时间</span>
+                <code class="detail-code">{{ formatTime(row.created_at) }}</code>
               </div>
-            <!-- Row 4: 错误信息（整行） -->
+            </div>
+            <!-- Row 5: 错误信息（整行） -->
             <div class="detail-row" v-if="row.status === 'failed' && row.error_message">
               <div class="detail-cell detail-full">
                 <span class="detail-label">错误信息</span>
@@ -314,7 +333,7 @@ function formatTime(t: string): string {
   const d = new Date(ts)
   if (isNaN(d.getTime())) return t
   const pad = (n: number) => String(n).padStart(2, '0')
-  return `${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}:${pad(d.getSeconds())}`
+  return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}:${pad(d.getSeconds())}`
 }
 
 function formatDuration(ms: number): string {