private LineRange replaceChangeWithAi(@NotNull TextMergeChange change, @NotNull List<String> newContentLines) {
    if (change.isResolved()) return null;

    myModel.replaceChange(change.getIndex(), newContentLines);
    markChangeResolvedWithAI(change);
    return new LineRange(myModel.getLineStart(change.getIndex()), myModel.getLineEnd(change.getIndex()));
  }
private LineRange replaceChangeWithAi(@NotNull TextMergeChange change, @NotNull List<String> newContentLines)