feat(task): 添加构建模型名称字段支持动态校验

- 在ModelGatewayTask实体中新增BuildModelName字段
- 修改ParseAndValidate函数参数，支持传入requiredFields
- 在异步工作器中实现构建模型的动态字段校验逻辑
- 添加prompt构建服务中传递构建模型名称的功能
- 实现构建模型不存在时的兜底机制

model/entity/model_gateway_task.go

@@ -21,6 +21,7 @@ type modelGatewayTaskCol struct {
 	TmpFile         string
 	RequestPayload  string
 	EpicycleId      string
+	BuildModelName  string
 }
 
 var ModelGatewayTaskCol = modelGatewayTaskCol{
@@ -40,6 +41,7 @@ var ModelGatewayTaskCol = modelGatewayTaskCol{
 	TmpFile:         "tmp_file",
 	RequestPayload:  "request_payload",
 	EpicycleId:      "epicycle_id",
+	BuildModelName:  "build_model_name",
 }
 
 // ModelGatewayTask 模型网关任务
@@ -60,6 +62,7 @@ type ModelGatewayTask struct {
 	TmpFile         string          `orm:"tmp_file" json:"tmpFile"`
 	RequestPayload  *RequestPayload `orm:"request_payload" json:"requestPayload"`
 	EpicycleId      int64           `orm:"epicycle_id" json:"epicycleId"`
+	BuildModelName  string          `orm:"build_model_name" json:"buildModelName"`
 }
 
 // ResultFile OSS 结果文件