feat(domain): UploadedTranscript.HadVideo

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/domain/domain.go

@@ -167,6 +167,10 @@ type UploadedTranscript struct {
 	Endpoint     string
 	AudioSeconds float64
 	ErrorKind    UploadErrorKind
-	CreatedAt    time.Time
-	FinishedAt   time.Time // zero until the job reaches done or failed
+	// HadVideo records that the uploaded file carried a video track. Only its audio
+	// was used and the video was discarded; the page says so. It is set at upload
+	// and never cleared (ADR-033).
+	HadVideo   bool
+	CreatedAt  time.Time
+	FinishedAt time.Time // zero until the job reaches done or failed
 }