Fix some includes in source/ps

Make include-what-you-use happy with some files in source/ps and fix
what needs to be fixed.

Ref: #8086
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>

source/ps/Mod.cpp

@@ -1,4 +1,4 @@
-/* Copyright (C) 2024 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -17,35 +17,46 @@
 
 #include "precompiled.h"
 
-#include "ps/Mod.h"
+#include "Mod.h"
 
-#include "i18n/L10n.h"
 #include "lib/file/file_system.h"
 #include "lib/file/vfs/vfs.h"
+#include "lib/path.h"
 #include "lib/sysdep/os.h"
 #include "lib/utf8.h"
+#include "ps/CLogger.h"
+#include "ps/Errors.h"
 #include "ps/Filesystem.h"
-#include "ps/GameSetup/GameSetup.h"
+#include "ps/GameSetup/CmdLineArgs.h"
 #include "ps/GameSetup/Paths.h"
 #include "ps/Profiler2.h"
 #include "scriptinterface/JSON.h"
 #include "scriptinterface/Object.h"
-#include "scriptinterface/ScriptExceptions.h"
-#include "scriptinterface/ScriptInterface.h"
+#include "scriptinterface/ScriptConversions.h"
+#include "scriptinterface/ScriptRequest.h"
 
-#if !OS_WIN
+#include <algorithm>
+#include <boost/algorithm/string/classification.hpp>
+#include <boost/algorithm/string/constants.hpp>
+#include <boost/algorithm/string/split.hpp>
+#include <cstddef>
+#include <fstream>
+#include <js/PropertyAndElement.h>
+#include <js/RootingAPI.h>
+#include <js/TypeDecls.h>
+#include <js/Value.h>
+#include <sstream>
+#include <string>
+#include <unordered_map>
+#include <utility>
+
+#if OS_WIN
+#include <filesystem>
+#else
 #include "lib/os_path.h"
 #endif
 
-#include <algorithm>
-#include <boost/algorithm/string/split.hpp>
-#include <boost/algorithm/string/classification.hpp>
-#if OS_WIN
-#include <filesystem>
-#endif
-#include <fstream>
-#include <sstream>
-#include <unordered_map>
+class ScriptInterface;
 
 namespace
 {