fix particle analysis table units and load image missing channels

frontend/tests/nodeWidgetLayout.test.mjs

@@ -0,0 +1,52 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import {
+  buildCombinedInputNameByWidgetName,
+  getWidgetCombinedInputName,
+} from '../src/nodeWidgetLayout.js';
+
+test('getWidgetCombinedInputName pairs same-label hide_when_input_connected widgets with their matching input', () => {
+  const dataInputByName = new Map([
+    ['colormap_map', { name: 'colormap_map', type: 'COLORMAP', label: 'colormap' }],
+  ]);
+
+  const combinedInputName = getWidgetCombinedInputName({
+    name: 'colormap',
+    opts: { hide_when_input_connected: 'colormap_map' },
+  }, dataInputByName);
+
+  assert.equal(combinedInputName, 'colormap_map');
+});
+
+test('getWidgetCombinedInputName leaves unrelated hidden inputs as standalone rows', () => {
+  const dataInputByName = new Map([
+    ['path', { name: 'path', type: 'FILE_PATH', label: 'path' }],
+  ]);
+
+  const combinedInputName = getWidgetCombinedInputName({
+    name: 'filename',
+    opts: { hide_when_input_connected: 'path' },
+  }, dataInputByName);
+
+  assert.equal(combinedInputName, null);
+});
+
+test('buildCombinedInputNameByWidgetName preserves explicit top_socket_input pairings', () => {
+  const combinedInputNameByWidgetName = buildCombinedInputNameByWidgetName(
+    [
+      {
+        name: 'directory',
+        opts: {
+          top_socket_input: 'directory',
+          hide_when_input_connected: 'directory',
+        },
+      },
+    ],
+    [
+      { name: 'directory', type: 'STRING', label: 'directory' },
+    ],
+  );
+
+  assert.equal(combinedInputNameByWidgetName.get('directory'), 'directory');
+});