Prevent persisting preview image paths in workflow JSON

Updated image_comparer.js to avoid saving preview image paths when serializing the workflow, ensuring that no unnecessary image data is stored. Bumped project version to 1.6.4 in pyproject.toml.

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "maxedout"
 description = "Custom ComfyUI nodes used in Maxed Out workflows (SDXL, Flux, Wan 2.2, etc.)"
-version = "1.6.3"
+version = "1.6.4"
 license = {file = "LICENSE"} 
 # classifiers = [
 #     # For OS-independent nodes (works on all operating systems)

web/js/image_comparer.js

@@ -458,11 +458,8 @@ class MxdImageComparer extends MxdBaseServerNode {
         // super.onSerialize && super.onSerialize(serialised);
         for (let [index, widget_value] of (serialised.widgets_values || []).entries()) {
             if (this.widgets[index]?.name === "mxd_comparer") {
-                serialised.widgets_values[index] = this.widgets[index].value.images.map((d) => {
-                    d = { ...d };
-                    delete d.img;
-                    return d;
-                });
+                // Do not persist preview image paths into workflow JSON.
+                serialised.widgets_values[index] = [];
             }
         }
     }