Use cpp-httplib instead of mongoose

Use cpp-httplib for Profiler2 and RLInterface instead of mongoose.

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

source/network/HttpServer.cpp

@@ -0,0 +1,62 @@
+/* Copyright (C) 2026 Wildfire Games.
+ * This file is part of 0 A.D.
+ *
+ * 0 A.D. 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 0 A.D. 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 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "precompiled.h"
+
+#include "HttpServer.h"
+
+#include "ps/Future.h"
+#include "ps/TaskManager.h"
+
+#include <httplib.h>
+#include <queue>
+
+namespace
+{
+class TaskQueueAdapter : public httplib::TaskQueue
+{
+public:
+	bool enqueue(std::function<void()> fn) override
+	{
+		// Remove finished
+		while (!m_Futures.empty() && m_Futures.front().IsDone())
+		{
+			m_Futures.front().Get();
+			m_Futures.pop();
+		}
+
+		m_Futures.push({g_TaskManager, fn});
+		return true;
+	}
+
+	void shutdown() override
+	{
+		m_Futures = {};
+	}
+private:
+	std::queue<Future<void>> m_Futures;
+};
+} // namespace
+
+namespace PS::Net
+{
+std::unique_ptr<httplib::Server> createHttpServer() {
+	auto server = std::make_unique<httplib::Server>();
+	server->new_task_queue = [] { return new TaskQueueAdapter(); };
+    return server;
+}
+} // namespace PS::Net