feat(oc): OC Control — Open Collector выходы Penny/Alex (эталон Thetis)

Byte 1401 High Priority packet: per-band (HF 160m-6m) и per-slot (XVTR)
RX/TX-маски на 7 пинов + TX pin action (MOX/TUNE/2TON и комбинации).
Только openHPSDR — у Pluto/AD936x такого выхода нет, вкладка Settings
скрывается на этом бэкенде. Настройки — вкладка "OC Control" в SettingsForm.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

PlutoBackend.pas

@@ -170,7 +170,8 @@ type
     procedure SetRunAndFreq(Run: Boolean; DDC0FreqHz, DUCFreqHz: Double;
                             DriveLevel: Byte = 100); override;
     procedure UpdateState(RXFreqHz, TXFreqHz: Double; DriveLevel: Byte;
-                          Transmitting, PAEnabled, AlexEnabled: Boolean); override;
+                          Transmitting, PAEnabled, AlexEnabled: Boolean;
+                          Tuning: Boolean = False; TwoTone: Boolean = False); override;
     procedure SendFullHP; override;
     procedure SendPTT(Active: Boolean); override;
     procedure SetAntPorts(RxPort, TxPort: Byte); override;
@@ -1065,7 +1066,7 @@ begin
 end;
 
 procedure TPlutoBackend.UpdateState(RXFreqHz, TXFreqHz: Double; DriveLevel: Byte;
-  Transmitting, PAEnabled, AlexEnabled: Boolean);
+  Transmitting, PAEnabled, AlexEnabled: Boolean; Tuning: Boolean; TwoTone: Boolean);
 begin
   FRXFreq := RXFreqHz;
   FTXFreq := TXFreqHz;