fix: int64 ID 字段序列化为 JSON string

desc/api/dispute.api

@@ -7,11 +7,11 @@ type (
 		Id int64 `path:"id"`
 	}
 	Dispute {
-		Id                 int64    `json:"id"`
-		OrderId            int64    `json:"orderId"`
-		InitiatorId        int64    `json:"initiatorId"`
+		Id                 int64    `json:"id,string"`
+		OrderId            int64    `json:"orderId,string"`
+		InitiatorId        int64    `json:"initiatorId,string"`
 		InitiatorName      string   `json:"initiatorName"`
-		RespondentId       int64    `json:"respondentId"`
+		RespondentId       int64    `json:"respondentId,string"`
 		Reason             string   `json:"reason"`
 		Evidence           []string `json:"evidence"`
 		Status             string   `json:"status"`
@@ -20,7 +20,7 @@ type (
 		RespondentEvidence []string `json:"respondentEvidence"`
 		AppealReason       string   `json:"appealReason,optional"`
 		AppealedAt         string   `json:"appealedAt,optional"`
-		ResolvedBy         int64    `json:"resolvedBy,optional"`
+		ResolvedBy         int64    `json:"resolvedBy,string,optional"`
 		ResolvedAt         string   `json:"resolvedAt,optional"`
 		CreatedAt          string   `json:"createdAt"`
 		UpdatedAt          string   `json:"updatedAt"`
@@ -74,3 +74,4 @@ service dispute-api {
 	@handler AppealDispute
 	post /disputes/:id/appeal (AppealReq) returns (EmptyResp)
 }
+