Sandboxed preloads (Electron's default with contextIsolation) cannot
require node modules. Commit 702b733 added node:path / node:url imports
to preload.ts which fail at load time:
Unable to load preload script: dist-electron/preload.mjs
Error: module not found: node:path
This left window.electronAPI undefined, breaking every IPC call.
Compute the asset base URL in main process (windows.ts) and pass it
to preload via webPreferences.additionalArguments. Preload reads it
from process.argv. Sync API for renderer is preserved.
Siddharth
8458cbb40e