Stored 0 was the shipped default from 2026-01-02 to 2026-03-28, and every
association path has run it with power save off since. Reading it as
MIN_MODEM, as F11 did, would have put every node set up in that window
into modem sleep on its next association. 0 now reads as `none`, and
`set wifi.powersave min` stores a new value 3. /mqtt.json accepts 0..3;
older firmware repairs 3 to `none` on load. Binary snapshots are no longer
written, so 3 never reaches a legacy layout.
agessaman
946d6c4f1e