Publish Untrace Desktop 1.6.1 with offline batch workflows

desktop/preload.cjs

@@ -0,0 +1,5 @@
+const { contextBridge, ipcRenderer } = require('electron');
+contextBridge.exposeInMainWorld('untraceDesktop', {
+  chooseOutputFolder: () => ipcRenderer.invoke('output:choose'),
+  saveOutput: (token, filename, bytes) => ipcRenderer.invoke('output:save', token, filename, bytes),
+});