Added a new JSON public schema as the default output artifact

internal/artifact/transcript_test.go

@@ -30,6 +30,57 @@ func TestSelectedFromMergedDefaultsToSeriatimTranscript(t *testing.T) {
 	}
 }
 
+func TestSelectedFromMergedUsesDefaultWhenConfigured(t *testing.T) {
+	got := SelectedFromMerged(config.Config{OutputSchema: config.OutputSchemaDefault}, model.MergedTranscript{})
+	if _, ok := got.(schema.DefaultTranscript); !ok {
+		t.Fatalf("selected artifact type = %T, want schema.DefaultTranscript", got)
+	}
+}
+
+func TestSelectedFromMergedUsesSeriatimWhenConfigured(t *testing.T) {
+	got := SelectedFromMerged(config.Config{OutputSchema: config.OutputSchemaSeriatim}, model.MergedTranscript{})
+	if _, ok := got.(schema.Transcript); !ok {
+		t.Fatalf("selected artifact type = %T, want schema.Transcript", got)
+	}
+}
+
+func TestDefaultFromMergedEmitsOnlyDefaultShape(t *testing.T) {
+	merged := model.MergedTranscript{
+		Segments: []model.Segment{
+			{
+				ID:             1,
+				Source:         "input.json",
+				SourceRef:      "word-run:1:1:1",
+				DerivedFrom:    []string{"input.json#0"},
+				Speaker:        "Alice",
+				Start:          1,
+				End:            2,
+				Text:           "hello",
+				Categories:     []string{"backchannel"},
+				OverlapGroupID: 1,
+			},
+		},
+		OverlapGroups: []model.OverlapGroup{
+			{ID: 1, Start: 1, End: 2, Segments: []string{"input.json#0"}, Speakers: []string{"Alice"}, Class: "unknown", Resolution: "unresolved"},
+		},
+	}
+
+	got := DefaultFromMerged(config.Config{OutputSchema: config.OutputSchemaDefault}, merged)
+	want := schema.DefaultTranscript{
+		Metadata: schema.DefaultMetadata{
+			Application:  ApplicationName,
+			Version:      buildinfo.Version,
+			OutputSchema: config.OutputSchemaDefault,
+		},
+		Segments: []schema.DefaultSegment{
+			{ID: 1, Start: 1, End: 2, Speaker: "Alice", Text: "hello", Categories: []string{"backchannel"}},
+		},
+	}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("default transcript = %#v, want %#v", got, want)
+	}
+}
+
 func TestMinimalFromMergedEmitsOnlyMinimalShape(t *testing.T) {
 	merged := model.MergedTranscript{
 		Segments: []model.Segment{