开放接口增加详细调试日志，并支持控制台与文件双写

- OPEN_API_DEBUG 记录鉴权、查单、推送业务字段与 req_id
- LOG_FILE 默认 logs/app.log，标准日志/Gin/GORM 同时输出控制台与文件

backend/internal/handler/open.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"time"
 
+	"affiliate_dash/internal/pkg/openlog"
 	"affiliate_dash/internal/pkg/response"
 	"affiliate_dash/internal/service"
 
@@ -26,8 +27,11 @@ func (h *OpenHandler) QueryOrder(c *gin.Context) {
 	if orderNo == "" {
 		orderNo = c.Query("order_no")
 	}
+	openlog.Info(c, "query_order start order_no=%s", orderNo)
+
 	data, err := h.orderSvc.QueryOpenOrder(orderNo)
 	if err != nil {
+		openlog.Warn(c, "query_order fail order_no=%s err=%s", orderNo, err.Error())
 		if err.Error() == "订单不存在" {
 			response.NotFound(c, err.Error())
 			return
@@ -35,6 +39,15 @@ func (h *OpenHandler) QueryOrder(c *gin.Context) {
 		response.BadRequest(c, err.Error())
 		return
 	}
+
+	sku, name, game := "", "", ""
+	if data.Product != nil {
+		sku, name, game = data.Product.SKU, data.Product.Name, data.Product.Game
+	}
+	openlog.Info(c, "query_order ok order_no=%s status=%s can_ship=%v reason=%q sku=%s name=%s game=%s buyer=%s amount=%.2f provider_no=%s shipped_at=%v fail_reason=%q",
+		data.OrderNo, data.Status, data.CanShip, data.CannotShipReason,
+		sku, name, game, data.BuyerName, data.Amount, data.ProviderOrderNo, data.ShippedAt, data.ShipFailReason,
+	)
 	response.OK(c, data)
 }
 
@@ -51,15 +64,21 @@ type shipNotifyReq struct {
 func (h *OpenHandler) ShipNotify(c *gin.Context) {
 	var req shipNotifyReq
 	if err := c.ShouldBindJSON(&req); err != nil {
+		openlog.Warn(c, "ship_notify bind_fail err=%v", err)
 		response.BadRequest(c, "参数错误：order_no 与 ship_status 必填")
 		return
 	}
 
 	raw, _ := json.Marshal(req)
+	openlog.Info(c, "ship_notify start order_no=%s ship_status=%s provider_no=%s shipped_at=%s fail_reason=%q payload=%s",
+		req.OrderNo, req.ShipStatus, req.ProviderOrderNo, req.ShippedAt, req.FailReason, openlog.Truncate(string(raw), 800),
+	)
+
 	var shippedAt *time.Time
 	if req.ShippedAt != "" {
 		t, err := time.Parse(time.RFC3339, req.ShippedAt)
 		if err != nil {
+			openlog.Warn(c, "ship_notify bad_shipped_at raw=%s err=%v", req.ShippedAt, err)
 			response.BadRequest(c, "shipped_at 格式错误，请使用 RFC3339，如 2026-07-20T16:00:00+08:00")
 			return
 		}
@@ -75,6 +94,8 @@ func (h *OpenHandler) ShipNotify(c *gin.Context) {
 		RawPayload:      string(raw),
 	})
 	if err != nil {
+		openlog.Warn(c, "ship_notify fail order_no=%s ship_status=%s err=%s",
+			req.OrderNo, req.ShipStatus, err.Error())
 		if err.Error() == "订单不存在" {
 			response.NotFound(c, err.Error())
 			return
@@ -82,5 +103,8 @@ func (h *OpenHandler) ShipNotify(c *gin.Context) {
 		response.BadRequest(c, err.Error())
 		return
 	}
+
+	openlog.Info(c, "ship_notify ok order_no=%s result_status=%s message=%s",
+		result.OrderNo, result.Status, result.Message)
 	response.OK(c, result)
 }