feat: optional MySQL/MariaDB database driver for deployments that cannot use local SQLite

internal/infrastructure/persistence/models/imageModel.go

@@ -15,7 +15,7 @@ type Image struct {
 	ContentType  string
 	Width        int
 	Height       int
-	SHA256       string `gorm:"column:sha256;index"`
+	SHA256       string `gorm:"column:sha256;index;size:64"`
 	UploadedByID uint32
 	CreatedAt    time.Time `gorm:"autoCreateTime"`
 	UpdatedAt    time.Time `gorm:"autoUpdateTime"`