fix: editor cleanup on Escape/reject + stop main audition on open

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

main.py

@@ -4297,7 +4297,7 @@ class AudioEditorDialog(QDialog):
             proc.deleteLater()
         self._btn_play.setText("▶ Play")
 
-    def closeEvent(self, ev) -> None:
+    def _cleanup(self) -> None:
         self._stop_play()
         for _t in list(self._temps):
             try:
@@ -4305,8 +4305,15 @@ class AudioEditorDialog(QDialog):
             except OSError:
                 pass
         self._temps.clear()
+
+    def closeEvent(self, ev) -> None:
+        self._cleanup()
         super().closeEvent(ev)
 
+    def reject(self) -> None:
+        self._cleanup()
+        super().reject()
+
     def _on_save_as(self):
         path, _sel = QFileDialog.getSaveFileName(
             self, "Save edited audio", "",
@@ -7076,6 +7083,7 @@ class MainWindow(QMainWindow):
         if not self._file_path:
             self._show_status("Load a video first", 3000)
             return
+        self._stop_audition()
         import tempfile
         start = self._cursor
         dur = self._spn_audio_len.value()
@@ -7101,6 +7109,7 @@ class MainWindow(QMainWindow):
         self._merge_temps.add(tmp)          # reuse the close-time temp sweep
         dlg = AudioEditorDialog(tmp, parent=self)
         dlg.exec()
+        dlg.deleteLater()
 
     def _merge_move(self, delta: int) -> None:
         row = self._merge_list.currentRow()

tests/test_ui_structure.py

@@ -749,3 +749,14 @@ def test_editor_close_cleans_temps(win, tmp_path):
     dlg.close()
     assert not t1.exists()
     assert os.path.exists(str(src))       # _versions[0] (entry temp) is NOT swept by the editor
+
+
+def test_editor_reject_cleans_temps(win, tmp_path):
+    import main as m
+    src = tmp_path / "v0.wav"; src.write_bytes(b"")
+    t1 = tmp_path / "t1.wav"; t1.write_bytes(b"x")
+    dlg = m.AudioEditorDialog(str(src), parent=win)
+    dlg._temps.add(str(t1))
+    dlg.reject()                        # Escape path
+    assert not t1.exists()              # op temp swept
+    assert os.path.exists(str(src))     # entry temp (_versions[0]) survives