feat: 限速状态可视化 - 订阅详情 Sheet 顶部展示实时限速状态

- typings.d.ts 新增 UserSubscribeDetail.effective_speed/is_throttled/throttle_rule 字段
- SubscriptionDetail Sheet 打开时拉取订阅详情，顶部展示 SpeedLimitCard
- 被降速时显示警告样式 + 实际速率 + 划掉原始速率 + 触发规则说明

Co-Authored-By: claude-flow <ruv@ruv.net>

apps/admin/src/sections/user/user-subscription/index.tsx

@@ -451,7 +451,7 @@ function RowReadOnlyActions({
           "This action cannot be undone."
         )}
         onConfirm={async () => {
-          await deleteUserSubscribe({ user_subscribe_id: String(row.id) });
+          await deleteUserSubscribe({ user_subscribe_id: row.id });
           toast.success(t("deleteSuccess", "Deleted successfully"));
           refresh?.();
         }}
@@ -636,7 +636,7 @@ function RowMoreActions({
           "This action cannot be undone."
         )}
         onConfirm={async () => {
-          await deleteUserSubscribe({ user_subscribe_id: String(row.id) });
+          await deleteUserSubscribe({ user_subscribe_id: row.id });
           toast.success(t("deleteSuccess", "Deleted successfully"));
           refresh();
         }}