a94eb7fdd0
Follow-up to ec436ed, closing the one item that commit left as "unverified".
Verified on the EMB-7KJ4VR4G host: native pi is not installed at all -- no `pi`
or `mempalace` on PATH, no ~/.config/pi/, no ~/.pi/agent/extensions/. That
host's ~/.mempalace exists solely to back the devbox container through the bind
mount (.devbox-owner holds 1000:1000). So the 2026-08-14 flip covers every pi
on that machine and there is no split-brain to fix. The general hazard stays
documented, because it is a per-machine question.
Also documents how a native install *would* be flipped, since the obvious guess
is wrong: pi loads no dotenv file and has no `env` block in settings.json, and
the extension reads process.env only. The launching shell is the sole hook, so
the vars must be exported from a shell rc (a GUI-launched pi may not read one),
and ~/.config/pi/.env is not sourced by anything automatically.