fix: command 'pasls.formatCode' not worked

src/serverprotocol/PasLS.Formatter.pas

@@ -64,7 +64,7 @@ interface
 implementation
 
 uses
-  SetTransform, SetReturns, SettingsTypes, JcfSettings;
+  SetTransform, SetReturns, SettingsTypes, JcfSettings,PasLS.JcfUINull,JcfUiTools;
 
 { TFileFormatter }
 
@@ -333,6 +333,7 @@ procedure TFileFormatter.Process(const aFileName: String;
   end;
 
 end;
-
+initialization
+  SetJcfUIClass(TJcfUINull.create);
 end.
 

src/serverprotocol/PasLS.JcfUINull.pas

@@ -0,0 +1,80 @@
+// Pascal Language Server
+// Copyright 2026 Simon Hsu
+
+// This file is part of Pascal Language Server.
+
+// Pascal Language Server is free software: you can redistribute it
+// and/or modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+
+// Pascal Language Server is distributed in the hope that it will be
+// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Pascal Language Server.  If not, see
+// <https://www.gnu.org/licenses/>.
+
+unit PasLS.JcfUINull;
+{$mode ObjFPC}
+interface
+
+uses
+  System.UITypes, ParseTreeNode,JcfUiTools; 
+
+type
+  TJcfUINull = class(TJcfUIBase)
+  public
+    procedure UpdateGUI(aCounter: integer = 0; aUpdateInterval: integer = 512); override;
+    function MessageDlgUI(const aMessage: string): TModalResult; override;
+    procedure ShowErrorMessageUI(const aMessage: string); override;
+    procedure SetWaitCursorUI; override;
+    procedure RestoreCursorUI; override;
+    procedure ShowParseTreeUI(const pcRoot: TParseTreeNode); override;
+    function OpenDocumentUI(const aPath: string): boolean; override;
+  end;
+
+implementation
+
+procedure TJcfUINull.UpdateGUI(aCounter: integer; aUpdateInterval: integer);
+begin
+
+end;
+
+function TJcfUINull.MessageDlgUI(const aMessage: string): TModalResult;
+begin
+  /// The Language Server Protocol (LSP) must remain non-blocking.
+  /// When user confirmation or a dialog interaction is required, 
+  /// it defaults to "OK" or "Yes" to ensure continuous execution.
+  Result := mrOK;
+end;
+
+procedure TJcfUINull.ShowErrorMessageUI(const aMessage: string);
+begin
+
+end;
+
+procedure TJcfUINull.SetWaitCursorUI;
+begin
+  // ignore
+end;
+
+procedure TJcfUINull.RestoreCursorUI;
+begin
+  // ignore
+end;
+
+procedure TJcfUINull.ShowParseTreeUI(const pcRoot: TParseTreeNode);
+begin
+  // ignore
+end;
+
+function TJcfUINull.OpenDocumentUI(const aPath: string): boolean;
+begin
+  // LSP should not open documents in an editor.
+  Result := True;
+end;
+
+end.