-Fix repeater prefs not persisting path.hash.mode, loop.detect, radio.rxgain, rxduty, APC settings across reboots
-Fix stack overflow in prefs load (8-byte buffer for 25-byte read) that silently corrupted owner.info on every boot
-Fix get radio.rxgain always returning radio frequency/BW settings instead of RX gain boost value
-Repeater first-boot and firmware-upgrade now correctly default radio.rxgain and rxduty to ON for SX1262 boards
-Fix setting new repeater radio preset/individual settings applying immediately instead only after reboot