feat: 增加订单过滤功能，支持按内容ID、支付时间范围和支付金额范围筛选

backend/app/http/tenant/dto/order_me.go

@@ -1,6 +1,8 @@
 package dto
 
 import (
+	"time"
+
 	"quyun/v2/app/requests"
 	"quyun/v2/pkg/consts"
 )
@@ -11,4 +13,10 @@ type MyOrderListFilter struct {
 	requests.Pagination `json:",inline" query:",inline"`
 	// Status filters orders by order status.
 	Status *consts.OrderStatus `json:"status,omitempty" query:"status"`
+	// PaidAtFrom filters orders by paid_at >= this time.
+	PaidAtFrom *time.Time `json:"paid_at_from,omitempty" query:"paid_at_from"`
+	// PaidAtTo filters orders by paid_at <= this time.
+	PaidAtTo *time.Time `json:"paid_at_to,omitempty" query:"paid_at_to"`
+	// ContentID filters orders by purchased content id (via order_items join).
+	ContentID *int64 `json:"content_id,omitempty" query:"content_id"`
 }