Replace all infra services with interfaces

internal/contract/contract.go

@@ -1,6 +1,11 @@
 package contract
 
-type ObjectStorage interface {
+import (
+	"git.vakhrushev.me/av/transcriber/internal/entity"
+)
+
+type AudioFileConverter interface {
+	Convert(src, dest string) error
 }
 
 type YandexS3Uploader interface {
@@ -8,6 +13,8 @@ type YandexS3Uploader interface {
 	FileUrl(fileName string) string
 }
 
-type AudioFileConverter interface {
-	Convert(src, dest string) error
+type AudioRecognizer interface {
+	RecognizeFile(filePath string) (operationID string, err error)
+	GetRecognitionText(operationID string) (string, error)
+	CheckRecognitionStatus(operationID string) (*entity.RecognitionResult, error)
 }