前后端数据流对齐：

后端改动：

GET /api/v1/accounts 现在返回分页格式 {items, total, page, size, total_pages, status_counts}，默认每页 12 个
批量操作用 size=500 一次拉全部
前端改动：

base.html — 加了移动端汉堡菜单、全局响应式样式、pagination disabled 状态
dashboard.html — 账号卡片分页，统计数据从 API 的 status_counts 取，移动端单列布局
account_detail.html — 签到记录改成上下两行布局（topic+状态 / 消息+时间），分页用统一的上一页/下一页样式，移动端适配
分页逻辑统一：前后端都用 page/total_pages 字段，pagination 组件显示当前页 ±2 页码。

backend/api_service/app/routers/accounts.py

@@ -92,15 +92,49 @@ async def create_account(
 
 @router.get("")
 async def list_accounts(
+    page: int = 1,
+    size: int = 12,
     user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
+    from sqlalchemy import func as sa_func
+
+    # Total count
+    count_q = select(sa_func.count()).select_from(
+        select(Account).where(Account.user_id == user.id).subquery()
+    )
+    total = (await db.execute(count_q)).scalar() or 0
+
+    # Status counts (for dashboard stats)
+    status_q = (
+        select(Account.status, sa_func.count())
+        .where(Account.user_id == user.id)
+        .group_by(Account.status)
+    )
+    status_rows = (await db.execute(status_q)).all()
+    status_counts = {row[0]: row[1] for row in status_rows}
+
+    # Paginated list
+    offset = (max(1, page) - 1) * size
     result = await db.execute(
-        select(Account).where(Account.user_id == user.id)
+        select(Account)
+        .where(Account.user_id == user.id)
+        .order_by(Account.created_at.desc())
+        .offset(offset)
+        .limit(size)
     )
     accounts = result.scalars().all()
+    total_pages = (total + size - 1) // size if total > 0 else 0
+
     return success_response(
-        [_account_to_dict(a) for a in accounts],
+        {
+            "items": [_account_to_dict(a) for a in accounts],
+            "total": total,
+            "page": page,
+            "size": size,
+            "total_pages": total_pages,
+            "status_counts": status_counts,
+        },
         "Accounts retrieved",
     )
 

backend/task_scheduler/app/__init__.py

@@ -0,0 +1 @@
+# Task scheduler app

backend/task_scheduler/app/tasks/__init__.py

@@ -0,0 +1 @@
+# Task modules