feat(asset): remove URL field from Asset model and related functions

internal/builders/asset_builder.go

@@ -15,7 +15,6 @@ func BuildAsset(item *models.Asset) response.AssetResponse {
 		Filename:       item.Filename,
 		FileSize:       item.FileSize,
 		MimeType:       item.MimeType,
-		URL:            item.URL,
 		StorageKey:     item.StorageKey,
 		Status:         item.Status,
 		CreatedAt:      item.CreatedAt.Format("2006-01-02 15:04:05"),

internal/models/models.go

@@ -304,7 +304,6 @@ type Asset struct {
 	AssetID    string              `gorm:"type:varchar(64);not null;uniqueIndex"`
 	Provider   enums.AssetProvider `gorm:"type:varchar(50);not null;default:'';index"`
 	StorageKey string              `gorm:"type:varchar(255);not null;default:'';uniqueIndex:uk_storage_key"`
-	URL        string              `gorm:"type:varchar(255);not null;default:''"`
 	Filename   string              `gorm:"type:varchar(255);not null;default:''"`
 	FileSize   int64               `gorm:"type:bigint;not null;default:0"`
 	MimeType   string              `gorm:"type:varchar(100);not null;default:''"`

internal/services/asset_service.go

@@ -107,7 +107,6 @@ func (s *assetService) Upload(reader io.Reader, info storage.UploadInfo) (*model
 		AssetID:     assetID,
 		Provider:    provider.ProviderType(),
 		StorageKey:  key,
-		URL:         provider.GetURL(key),
 		Filename:    info.Filename,
 		FileSize:    info.FileSize,
 		MimeType:    info.MimeType,