fix particle analysis table units and load image missing channels

frontend/src/loadNodeOutputs.js

@@ -0,0 +1,30 @@
+export function resolveLoadNodeChannelPath({
+  explicitPath = null,
+  resolvedPathInput = null,
+  className = '',
+  widgetValues = {},
+} = {}) {
+  if (typeof explicitPath === 'string' && explicitPath) {
+    return explicitPath;
+  }
+  if (typeof resolvedPathInput === 'string' && resolvedPathInput) {
+    return resolvedPathInput;
+  }
+  if (className === 'Image') {
+    return String(widgetValues?.filename || '');
+  }
+  if (className === 'ImageDemo') {
+    return String(widgetValues?.name || '');
+  }
+  return '';
+}
+
+export function beginTrackedNodeRequest(requestVersions, nodeId) {
+  const nextVersion = (requestVersions.get(nodeId) || 0) + 1;
+  requestVersions.set(nodeId, nextVersion);
+  return nextVersion;
+}
+
+export function isTrackedNodeRequestCurrent(requestVersions, nodeId, version) {
+  return requestVersions.get(nodeId) === version;
+}