feat: 完成 Passkey 能力与前后台加载优化

更新说明：\n1. 新增用户端与管理员端 Passkey 登录/注册/设备管理（最多3台，支持设备备注、删除设备）。\n2. 修复 Passkey 注册与登录流程中的浏览器/证书/CSRF相关问题，增强错误提示。\n3. 前台登录页改为独立入口，首屏仅加载必要资源，其他页面按需加载。\n4. 系统配置页改为静默获取金山文档状态，避免首屏阻塞，并优化状态展示为“检测中/已登录/未登录/异常”。\n5. 补充后端接口与页面渲染适配，修复多入口下样式依赖注入问题。\n6. 同步更新前后台构建产物与相关静态资源。

routes/api_schedules.py

@@ -79,6 +79,27 @@ def _parse_browse_type_or_error(raw_value, *, default=BROWSE_TYPE_SHOULD_READ):
     return browse_type, None
 
 
+def _parse_optional_pagination(default_limit: int = 20, *, max_limit: int = 200) -> tuple[int | None, int | None, bool]:
+    limit_raw = request.args.get("limit")
+    offset_raw = request.args.get("offset")
+    if (limit_raw is None) and (offset_raw is None):
+        return None, None, False
+
+    try:
+        limit = int(limit_raw if limit_raw is not None else default_limit)
+    except (ValueError, TypeError):
+        limit = default_limit
+    limit = max(1, min(limit, max_limit))
+
+    try:
+        offset = int(offset_raw if offset_raw is not None else 0)
+    except (ValueError, TypeError):
+        offset = 0
+    offset = max(0, offset)
+
+    return limit, offset, True
+
+
 @api_schedules_bp.route("/api/schedules", methods=["GET"])
 @login_required
 def get_user_schedules_api():
@@ -86,6 +107,13 @@ def get_user_schedules_api():
     schedules = database.get_user_schedules(current_user.id)
     for schedule in schedules:
         schedule["account_ids"] = _parse_schedule_account_ids(schedule.get("account_ids"))
+
+    limit, offset, paged = _parse_optional_pagination(default_limit=12, max_limit=100)
+    if paged:
+        total = len(schedules)
+        items = schedules[offset : offset + limit]
+        return jsonify({"items": items, "total": total, "limit": limit, "offset": offset})
+
     return jsonify(schedules)