allow specifying conversion resolution, drop explicit dpi

clients/go/officeconvertclient/client.go

@@ -46,9 +46,11 @@ func (c *Client) SetPollInterval(interval time.Duration) {
 func (c *Client) CreateConversion(
 	ctx context.Context,
 	sourceFilename string,
+	resolution officeconvertapiv1.ConversionResolution,
 ) (*officeconvertapiv1.CreateConversionResponse, error) {
 	req := connect.NewRequest(&officeconvertapiv1.CreateConversionRequest{
 		SourceFilename: sourceFilename,
+		Resolution:     resolution,
 	})
 	res, err := c.rpc.CreateConversion(ctx, req)
 	if err != nil {

clients/go/officeconvertclient/orchestrate.go

@@ -16,7 +16,11 @@ type ConversionResult struct {
 
 // ConvertPPTXFile runs the full create-upload-start-wait-fetch flow.
 func (c *Client) ConvertPPTXFile(ctx context.Context, localPPTXPath string) (*ConversionResult, error) {
-	createRes, err := c.CreateConversion(ctx, filepath.Base(localPPTXPath))
+	createRes, err := c.CreateConversion(
+		ctx,
+		filepath.Base(localPPTXPath),
+		officeconvertapiv1.ConversionResolution_CONVERSION_RESOLUTION_UNSPECIFIED,
+	)
 	if err != nil {
 		return nil, fmt.Errorf("create conversion: %w", err)
 	}