Fix CAT settings: load before connect, default TCP port 19090

- Settings.pas: add root-level SaveCATSettings/LoadCATSettings so CAT
  config is stored independently of device MAC.
- MainForm.pas FormCreate: initialize CAT defaults, load from saved
  'cat' JSON section, and apply immediately after InitCATEngine — so
  SettingsForm shows correct values before the transceiver connects.
- MainForm.pas OnCATSettingsChange: always save to root 'cat' section
  (not only when device is connected) so changes persist immediately.
- Default TCP CAT port changed from 4992 to 19090 everywhere.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

MainForm.pas

@@ -1018,7 +1018,21 @@ begin
   FWebServer.OnDrive     := WebOnDrive;
   FWebServer.Start;
   FillChar(FCATLastGlobal, SizeOf(FCATLastGlobal), 0);
+  FCATLastGlobal.CATTcpPort := 19090;
+  for i := 0 to 3 do
+  begin
+    FCATLastGlobal.CATSerialBaud[i]     := 9600;
+    FCATLastGlobal.CATSerialDataBits[i] := 8;
+    FCATLastGlobal.CATSerialStopBits[i] := 1;
+    {$IFDEF MSWINDOWS}
+    FCATLastGlobal.CATSerialPort[i] := 'COM' + IntToStr(i + 1);
+    {$ELSE}
+    FCATLastGlobal.CATSerialPort[i] := '/dev/ttyS' + IntToStr(i);
+    {$ENDIF}
+  end;
+  FSettings.LoadCATSettings(FCATLastGlobal);
   InitCATEngine;
+  CATApplySettings(FCATLastGlobal);
   FSMeterPeak    := -130;
   FSMeterMin     := -130;
   FSMeterAvg     := -130;
@@ -4756,10 +4770,10 @@ begin
   FCATLastGlobal.CATTcpEnabled := TcpEnabled;
   FCATLastGlobal.CATTcpPort    := TcpPort;
   CATApplySettings(FCATLastGlobal);
-  if FDevConnected then begin
+  FSettings.SaveCATSettings(FCATLastGlobal);
+  if FDevConnected then
     FSettings.SaveGlobal(FDevMAC, MakeGlobalSettings);
-    FSettings.Save;
+  FSettings.Save;
-  end;
 end;
 
 // --- Getters (called from CAT thread — read only, no sync needed) -----------

Settings.pas

@@ -85,7 +85,7 @@ type
     CATSerialParity:   array[0..3] of Integer;  // 0=None, 1=Odd, 2=Even
     // TCP CAT сервер (один, многоклиентский)
     CATTcpEnabled:     Boolean;
-    CATTcpPort:        Integer;  // порт, по умолчанию 4992
+    CATTcpPort:        Integer;  // порт, по умолчанию 19090
   end;
 
   TSettingsManager = class
@@ -125,6 +125,9 @@ type
     procedure LoadWindowBounds(out L, T, W, H: Integer);
     procedure SaveStartupPreview(VfoA, VfoB: Double; SampleRate: Integer);
     function  LoadStartupPreview(out VfoA, VfoB: Double; out SampleRate: Integer): Boolean;
+    // CAT settings — не привязаны к MAC, хранятся в корне JSON (доступны до подключения)
+    procedure SaveCATSettings(const G: TGlobalSettings);
+    procedure LoadCATSettings(var G: TGlobalSettings);
   end;
 
 implementation
@@ -216,7 +219,7 @@ begin
     G.CATSerialParity[i]   := 0; // None
   end;
   G.CATTcpEnabled := False;
-  G.CATTcpPort    := 4992;
+  G.CATTcpPort    := 19090;
 end;
 
 constructor TSettingsManager.Create(const FilePath: string);
@@ -428,7 +431,7 @@ begin
     G.CATSerialParity[i]   := JI(GObj,'cat_serial_parity_'+IntToStr(i), 0);
   end;
   G.CATTcpEnabled := JB(GObj,'cat_tcp_enabled', False);
-  G.CATTcpPort    := JI(GObj,'cat_tcp_port', 4992);
+  G.CATTcpPort    := JI(GObj,'cat_tcp_port', 19090);
 
   for i := 0 to CFG_BAND_COUNT-1 do
   begin
@@ -579,4 +582,43 @@ begin
   SampleRate := JI(O, 'sample_rate', 192000);
 end;
 
+procedure TSettingsManager.SaveCATSettings(const G: TGlobalSettings);
+var O: TJSONObject; i: Integer;
+begin
+  O := EnsureObj(FRoot, 'cat');
+  JW(O, 'tcp_en',   G.CATTcpEnabled);
+  JW(O, 'tcp_port', G.CATTcpPort);
+  for i := 0 to 3 do
+  begin
+    JW(O,  'ser_en_'    +IntToStr(i), G.CATSerialEnabled[i]);
+    JWS(O, 'ser_port_'  +IntToStr(i), G.CATSerialPort[i]);
+    JW(O,  'ser_baud_'  +IntToStr(i), G.CATSerialBaud[i]);
+    JW(O,  'ser_dbits_' +IntToStr(i), G.CATSerialDataBits[i]);
+    JW(O,  'ser_sbits_' +IntToStr(i), G.CATSerialStopBits[i]);
+    JW(O,  'ser_parity_'+IntToStr(i), G.CATSerialParity[i]);
+  end;
+end;
+
+procedure TSettingsManager.LoadCATSettings(var G: TGlobalSettings);
+var O: TJSONObject; i: Integer;
+begin
+  if FRoot.Find('cat') = nil then Exit;
+  O := EnsureObj(FRoot, 'cat');
+  G.CATTcpEnabled := JB(O, 'tcp_en',   False);
+  G.CATTcpPort    := JI(O, 'tcp_port', 19090);
+  for i := 0 to 3 do
+  begin
+    G.CATSerialEnabled[i]  := JB(O, 'ser_en_'    +IntToStr(i), False);
+    {$IFDEF MSWINDOWS}
+    G.CATSerialPort[i]     := JS(O, 'ser_port_'  +IntToStr(i), 'COM'+IntToStr(i+1));
+    {$ELSE}
+    G.CATSerialPort[i]     := JS(O, 'ser_port_'  +IntToStr(i), '/dev/ttyS'+IntToStr(i));
+    {$ENDIF}
+    G.CATSerialBaud[i]     := JI(O, 'ser_baud_'  +IntToStr(i), 9600);
+    G.CATSerialDataBits[i] := JI(O, 'ser_dbits_' +IntToStr(i), 8);
+    G.CATSerialStopBits[i] := JI(O, 'ser_sbits_' +IntToStr(i), 1);
+    G.CATSerialParity[i]   := JI(O, 'ser_parity_'+IntToStr(i), 0);
+  end;
+end;
+
 end.

SettingsForm.pas

@@ -1445,7 +1445,7 @@ begin
 
   FCATTcpEn            := TCheckBox.Create(Self);
   FCATTcpEn.Parent     := Grp;
-  FCATTcpEn.Caption    := 'Enable TCP server (default port 4992)';
+  FCATTcpEn.Caption    := 'Enable TCP server (default port 19090)';
   FCATTcpEn.SetBounds(PAD, R1, 300, 22);
   FCATTcpEn.Font.Color := CLR_TEXT;
   FCATTcpEn.Font.Name  := UI_FONT; FCATTcpEn.Font.Size := 9;
@@ -1458,7 +1458,7 @@ begin
   Spin.Color      := CLR_INPUT; Spin.Font.Color := CLR_INPUT_TEXT;
   Spin.Font.Name  := UI_FONT; Spin.Font.Size := 9;
   Spin.MinValue   := 1; Spin.MaxValue := 65535;
-  Spin.Value      := 4992;
+  Spin.Value      := 19090;
   Spin.OnChange   := OnCATTcpChange;
   FCATTcpPort := Spin;
 end;