Split single Voxtral transcript segments

internal/transcription/client_test.go

@@ -135,6 +135,30 @@ func TestSegmentTranscriptTextAddsHeuristicSpeakers(t *testing.T) {
 	}
 }
 
+func TestNormalizeAudioLLMSegmentsSplitsSingleLongSegment(t *testing.T) {
+	text := "Алло, добрый день. Да, слушаю. Скажите, квартира продается? Да, продается."
+	got := normalizeAudioLLMSegments([]Segment{{Start: 0, End: 12, Text: text}}, text, true)
+	if len(got) < 2 {
+		t.Fatalf("segments = %#v, want heuristic split", got)
+	}
+	if got[0].Speaker != "SPEAKER_00" || got[1].Speaker != "SPEAKER_01" {
+		t.Fatalf("speakers = %q/%q", got[0].Speaker, got[1].Speaker)
+	}
+}
+
+func TestNormalizeAudioLLMSegmentsKeepsSegmentsAndAddsSpeakers(t *testing.T) {
+	got := normalizeAudioLLMSegments([]Segment{
+		{Start: 0, End: 1, Text: "Алло."},
+		{Start: 1, End: 2, Text: "Да, слушаю."},
+	}, "Алло. Да, слушаю.", true)
+	if len(got) != 2 {
+		t.Fatalf("segments = %#v", got)
+	}
+	if got[0].Speaker != "SPEAKER_00" || got[1].Speaker != "SPEAKER_01" {
+		t.Fatalf("speakers = %q/%q", got[0].Speaker, got[1].Speaker)
+	}
+}
+
 func near(got, want float64) bool {
 	return math.Abs(got-want) < 0.000001
 }