优化申诉仲裁流程和证据展示

backend/internal/modules/dispute/handler.go

@@ -75,6 +75,42 @@ func (h *Handler) Detail(c *gin.Context) {
 	response.OK(c, item)
 }
 
+func (h *Handler) Cancel(c *gin.Context) {
+	userID, ok := currentUserID(c)
+	if !ok {
+		response.Unauthorized(c, "缺少用户上下文")
+		return
+	}
+	id, ok := parseID(c)
+	if !ok {
+		return
+	}
+	item, err := h.service.Cancel(c.Request.Context(), userID, id)
+	if err != nil {
+		writeDisputeError(c, err)
+		return
+	}
+	response.OK(c, item)
+}
+
+func (h *Handler) CancelByOrder(c *gin.Context) {
+	userID, ok := currentUserID(c)
+	if !ok {
+		response.Unauthorized(c, "缺少用户上下文")
+		return
+	}
+	orderID, ok := parseID(c)
+	if !ok {
+		return
+	}
+	item, err := h.service.CancelByOrder(c.Request.Context(), userID, orderID)
+	if err != nil {
+		writeDisputeError(c, err)
+		return
+	}
+	response.OK(c, item)
+}
+
 func (h *Handler) AdminList(c *gin.Context) {
 	page, pageSize := parsePagination(c)
 	result, err := h.service.ListAdmin(c.Request.Context(), page, pageSize)
@@ -168,6 +204,8 @@ func writeDisputeError(c *gin.Context, err error) {
 		response.Error(c, http.StatusConflict, "dispute_exists", "该订单已有处理中申诉")
 	case errors.Is(err, ErrDisputeCannotHandle):
 		response.Error(c, http.StatusConflict, "dispute_cannot_handle", "当前申诉不能仲裁")
+	case errors.Is(err, ErrDisputeCannotCancel):
+		response.Error(c, http.StatusConflict, "dispute_cannot_cancel", "当前申诉不能取消")
 	case errors.Is(err, ErrPermissionDenied):
 		response.Error(c, http.StatusForbidden, "permission_denied", "无权操作该申诉")
 	case IsNotFound(err):