Add Windows program model

Author: mearvk

src/windows/WindowsProgram.java

@@ -0,0 +1,20 @@
+package windows;
+
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+
+/** Describes a Windows executable or command without executing it. */
+public record WindowsProgram(String name, Path executable) {
+    public WindowsProgram {
+        if (name == null || name.isBlank()) throw new IllegalArgumentException("name is required");
+        if (executable == null) throw new IllegalArgumentException("executable is required");
+    }
+
+    public List<String> command(List<String> arguments) {
+        List<String> command = new ArrayList<>();
+        command.add(executable.toString());
+        command.addAll(arguments);
+        return List.copyOf(command);
+    }
+}