feat: 统一 Admin 主列表分页 (#64)

admin/repository/task.go

@@ -329,7 +329,7 @@ func taskFilterClause(filter TaskFilter) (string, []any) {
 // 「目标」列更好读；join 条件里的 `deleted_at IS NULL` 让"join 不到"和
 // "商品已软删除"这两种情况都自然落到 PddTitle 为空，service 层退回显示
 // PddGoodsID 即可，不用在 service 里再判断一次已删除。
-func ListTasks(q Execer, filter TaskFilter) ([]TaskListRow, error) {
+func ListTasks(q Execer, filter TaskFilter, limit, offset int) ([]TaskListRow, error) {
 	where, args := taskFilterClause(filter)
 	sqlText := `
 		SELECT t.task_id, t.task_type, t.status, t.assigned_client,
@@ -338,7 +338,8 @@ func ListTasks(q Execer, filter TaskFilter) ([]TaskListRow, error) {
 		  FROM tasks t
 		  LEFT JOIN pdd_products p
 		         ON p.goods_id = t.pdd_goods_id AND p.deleted_at IS NULL` +
-		where + ` ORDER BY t.updated_at DESC, t.task_id DESC`
+		where + ` ORDER BY t.updated_at DESC, t.task_id DESC LIMIT ? OFFSET ?`
+	args = append(args, limit, offset)
 
 	rows, err := q.Query(sqlText, args...)
 	if err != nil {