test: assertions the adversarial review found missing -- log lines, immediate saves, snapshot isolation, store and temp-file failures, bounded snippet, identical list (review F9)

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

internal/adapters/transcribe/gateway_test.go

@@ -9,6 +9,7 @@ import (
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -238,3 +239,19 @@ func TestStatusError_ExposesItsCodeAsAKindAndNotItsSnippet(t *testing.T) {
 
 	assert.Equal(t, "http_502", errkind.Of(err))
 }
+
+func TestGateway_AnErrorBodyIsBoundedToTwoHundredBytesInTheStatusError(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+		_, _ = w.Write([]byte(strings.Repeat("x", 100_000)))
+	}))
+	defer srv.Close()
+	wav := filepath.Join(t.TempDir(), "a.wav")
+	require.NoError(t, os.WriteFile(wav, []byte("RIFF....WAVEfmt "), 0o600))
+
+	_, err := transcribe.NewGateway(srv.URL, "", "iguana/kb-whisper", srv.Client()).Transcribe(context.Background(), wav)
+
+	var se *transcribe.StatusError
+	require.ErrorAs(t, err, &se)
+	assert.LessOrEqual(t, len(se.Snippet), 200, "a gateway's whole body must not become part of an error")
+}