chore: replace all cn comments to en version by volc api (#313)

backend/domain/memory/variables/entity/sys_variables.go

@@ -61,7 +61,7 @@ func (v SysConfVariables) GroupByName() []*kvmemory.GroupVariableInfo {
 
 		groupName := variable.GroupName
 		if groupName == "" {
-			groupName = "未分组" // 处理空分组名
+			groupName = "未分组" // Handling empty group names
 		}
 
 		if _, ok := groups[groupName]; !ok {
@@ -75,13 +75,13 @@ func (v SysConfVariables) GroupByName() []*kvmemory.GroupVariableInfo {
 		groups[groupName].VarInfoList = append(groups[groupName].VarInfoList, variable)
 	}
 
-	// 转换为切片并按组名排序
+	// Convert to slices and sort by group name
 	result := make([]*kvmemory.GroupVariableInfo, 0, len(groups))
 	for _, group := range groups {
 		result = append(result, group)
 	}
 
-	// 可选：按组名排序
+	// Optional: sort by group name
 	sort.Slice(result, func(i, j int) bool {
 		return result[i].GroupName < result[j].GroupName
 	})

backend/domain/memory/variables/entity/variable_instance.go

@@ -60,7 +60,7 @@ const (
 )
 
 func (v *UserVariableMeta) GenSystemKV(ctx context.Context, keyword string) (*kvmemory.KVItem, error) {
-	if keyword != sysUUIDKey { // 外场暂时只支持这一个变量
+	if keyword != sysUUIDKey { // The outfield only supports this one variable for the time being
 		return nil, nil
 	}
 
@@ -94,7 +94,7 @@ func (v *UserVariableMeta) genUUID(ctx context.Context) (*kvmemory.KVItem, error
 }
 
 func (v *UserVariableMeta) encryptSysUUIDKey(ctx context.Context) string {
-	// 拼接四个字段，中间用特殊分隔符（如 | ）
+	// Combine four fields with a special delimiter (e.g. |)
 	plain := fmt.Sprintf("%d|%s|%s|%d", v.BizType, v.BizID, v.ConnectorUID, v.ConnectorID)
 	return base64.StdEncoding.EncodeToString([]byte(plain))
 }

backend/domain/memory/variables/entity/variable_meta_schema.go

@@ -169,7 +169,7 @@ func (v *VariableMetaSchema) nameValidate() bool {
 		return false
 	}
 
-	// 检查是否符合后面的部分正则规则
+	// Check if some of the following regular rules are met
 	pattern := `^[a-zA-Z_][a-zA-Z_$0-9]*$`
 	match, _ := regexp.MatchString(pattern, identifier)