Ryan Malloy
1192b31166
Extend the rotctld wire protocol with three new commands that enable signal strength measurement through the Carryout G2's DVB subsystem: - R [n]: Read RSSI (handles motor→dvb→rssi→motor menu dance internally) - L: Enable LNA for signal reception (one-time pre-scan setup) - D: Discover capabilities (returns CAPS:rssi,lna for G2, empty for others) Non-G2 protocols return RPRT -6 (not available) for R and L commands. The menu state invariant is maintained after every operation so P commands continue to work between RSSI reads.