With a script as the Electron entry, the app path is the script's folder;
main.js loads chrome.html, home.html and every overlay by relative name, so
all of them failed with ERR_FILE_NOT_FOUND and every traced run measured a
broken launch (it also left a window showing the error page). The tracer now
sets app.setAppPath to TheseusNavigator, records failed main-frame loads, and
run.mjs marks such a run INVALID.
Re-measured (warm runs, fresh profile): the per-overlay lazy loading in
e524c12 saves 5 processes and ~100 MB private memory at 15 s — not ~30 MB
with an unchanged process count as its message says; that figure came from
the broken runs. The BNS indexer utilityProcess costs ~60-75 MB.
b531c89f82