feat: add manual fulfillment order creation

backend/internal/handler/merchant.go

@@ -2,6 +2,7 @@ package handler
 
 import (
 	"strconv"
+	"strings"
 	"time"
 
 	"affiliate_dash/internal/middleware"
@@ -76,14 +77,64 @@ func (h *MerchantHandler) UpdateProductStatus(c *gin.Context) {
 
 func (h *MerchantHandler) ListOrders(c *gin.Context) {
 	page, size := pageParams(c)
-	list, total, err := h.fulfillmentSvc.ListOrders(middleware.GetMerchantID(c), page, size, c.Query("order_status"))
+	orderSource := strings.TrimSpace(c.Query("order_source"))
+	list, total, err := h.fulfillmentSvc.ListOrders(middleware.GetMerchantID(c), page, size, c.Query("order_status"), orderSource)
 	if err != nil {
+		if orderSource != "" && err.Error() == "无效的订单来源" {
+			response.BadRequest(c, err.Error())
+			return
+		}
 		response.ServerError(c, err.Error())
 		return
 	}
 	response.Page(c, list, total, page, size)
 }
 
+type merchantManualOrderReq struct {
+	ClientOrderNo  string `json:"client_order_no" binding:"required,max=96"`
+	SKU            string `json:"sku" binding:"required,max=96"`
+	Quantity       int64  `json:"quantity"`
+	BuyerReference string `json:"buyer_reference" binding:"max=128"`
+	GameAccount    string `json:"game_account" binding:"max=128"`
+	Note           string `json:"note" binding:"max=512"`
+}
+
+// CreateManualOrder 在商户后台创建真实订单；扣款、库存和回调与开放 API 下单保持一致。
+func (h *MerchantHandler) CreateManualOrder(c *gin.Context) {
+	var req merchantManualOrderReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "参数错误：商户单号与商品必填")
+		return
+	}
+	data := map[string]string{}
+	if gameAccount := strings.TrimSpace(req.GameAccount); gameAccount != "" {
+		data["game_account"] = gameAccount
+	}
+	if note := strings.TrimSpace(req.Note); note != "" {
+		data["manual_note"] = note
+	}
+	result, err := h.fulfillmentSvc.CreateManualOrder(service.CreateManualOrderInput{
+		MerchantID:     middleware.GetMerchantID(c),
+		ActorUserID:    middleware.GetUserID(c),
+		ClientOrderNo:  req.ClientOrderNo,
+		SKU:            req.SKU,
+		Quantity:       req.Quantity,
+		BuyerReference: req.BuyerReference,
+		RequestData:    data,
+	})
+	if err != nil {
+		response.BadRequest(c, err.Error())
+		return
+	}
+	canShip, cannotShipReason := service.CanFulfill(result.Order)
+	response.OK(c, gin.H{
+		"order":              result.Order,
+		"idempotent":         result.Idempotent,
+		"can_ship":           canShip,
+		"cannot_ship_reason": cannotShipReason,
+	})
+}
+
 type merchantTestOrderReq struct {
 	SKU            string `json:"sku" binding:"required"`
 	BuyerReference string `json:"buyer_reference"`

backend/internal/handler/open_v1.go

@@ -281,6 +281,7 @@ func buildOpenOrderResponse(order *model.FulfillmentOrder) gin.H {
 		"order_no":           order.OrderNo,
 		"client_order_no":    order.ClientOrderNo,
 		"order_status":       order.OrderStatus,
+		"order_source":       order.OrderSource,
 		"can_ship":           canShip,
 		"cannot_ship_reason": reason,
 		"product": gin.H{