feat: connect explore datasets to backend

backend/internal/models/dataset_cron.go

@@ -0,0 +1,24 @@
+package models
+
+import "time"
+
+type SaDatasetCron struct {
+	ID                uint   `gorm:"primaryKey"`
+	Identity          string `gorm:"type:char(36);uniqueIndex"`
+	SourceID          uint   `gorm:"index;not null"`
+	SourceIdentity    string `gorm:"type:char(36);index"`
+	CreatedBy         uint   `gorm:"index;not null"`
+	CreatedByIdentity string `gorm:"type:char(36);index"`
+	Schedule          string `gorm:"size:100;not null"`
+	Status            string `gorm:"size:32;not null;default:pending;index"`
+	Enabled           bool   `gorm:"not null;default:true;index"`
+	NextRunAt         *time.Time
+	LastRunAt         *time.Time
+	LastResult        string `gorm:"type:text"`
+	CreatedAt         time.Time
+	UpdatedAt         time.Time
+}
+
+func (SaDatasetCron) TableName() string {
+	return "sa_dataset_crons"
+}