feat(rock): 绑定错误可直接改买家 UID，提货号继续留在原订单

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/internal/handler/rock.go

@@ -110,6 +110,38 @@ func (h *RockHandler) ListTokens(c *gin.Context) {
 	})
 }
 
+type correctUIDReq struct {
+	ExpectedUID string `json:"expected_uid"`
+}
+
+// CorrectTokenUID 修改绑定错误订单上买家填写的 UID，不释放提货号。
+func (h *RockHandler) CorrectTokenUID(c *gin.Context) {
+	idUint, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		response.BadRequest(c, "无效的 Token ID")
+		return
+	}
+	var req correctUIDReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "参数解析失败")
+		return
+	}
+	token, err := h.rockSvc.CorrectMismatchExpectedUID(c.Request.Context(), uint(idUint), req.ExpectedUID)
+	if err != nil {
+		response.BadRequest(c, err.Error())
+		return
+	}
+	message := "已更新买家 UID，提货号仍属于原订单"
+	if token.Status == "bound" {
+		message = "已改成扫码 UID，绑定阻断已解除，提货号仍属于原订单"
+	}
+	response.OK(c, gin.H{
+		"message": message,
+		"status":  token.Status,
+		"token":   token,
+	})
+}
+
 // ResetToken 客服人工重置 mismatch 状态的 Token
 func (h *RockHandler) ResetToken(c *gin.Context) {
 	idUint, err := strconv.ParseUint(c.Param("id"), 10, 64)