feat: image variants engine

internal/infrastructure/persistence/models/imageVariantFileModel.go

@@ -0,0 +1,14 @@
+package models
+
+import "time"
+
+type ImageVariantFile struct {
+	ID          uint32 `gorm:"primaryKey;autoIncrement"`
+	VariantName string `gorm:"not null;size:32;uniqueIndex:idx_image_variant_files_pair,priority:1"`
+	SourceName  string `gorm:"not null;size:191;uniqueIndex:idx_image_variant_files_pair,priority:2;index:idx_image_variant_files_source"`
+	CachedName  string `gorm:"not null;size:191"`
+	ContentType string `gorm:"not null;size:64"`
+	Size        int64  `gorm:"not null"`
+	Fingerprint string `gorm:"not null;size:64"`
+	CreatedAt   time.Time
+}