The console's own desired ROLE for a segment — REAC_CFG_ROLE_MASTER or
REAC_CFG_ROLE_SLAVE, the same numeric-flag convention reac.headamp.<ch>.phantom
already uses. Our own role is CHOSEN, never sensed — there is no separate "observed"
counterpart key; reading this prop back IS reading the daemon's own answer.
The console's own desired ROLE for a segment — REAC_CFG_ROLE_MASTER or REAC_CFG_ROLE_SLAVE, the same numeric-flag convention
reac.headamp.<ch>.phantomalready uses. Our own role is CHOSEN, never sensed — there is no separate "observed" counterpart key; reading this prop back IS reading the daemon's own answer.