Add --no-network option (#831)

- Add `--no-network` CLI option which disables all TCP/HTTPS listeners, restricting zenserver to Unix domain socket communication only. 
- Also fixes asio upgrade breakage on main

1 files changed, 2 insertions, 2 deletions

diff --git a/src/zenserver/proxy/zenproxyserver.cpp b/src/zenserver/proxy/zenproxyserver.cpp
index 1fd9cd2c4..acfdad45f 100644
--- a/src/zenserver/proxy/zenproxyserver.cpp
+++ b/src/zenserver/proxy/zenproxyserver.cpp
@@ -302,7 +302,7 @@ ZenProxyServer::Initialize(const ZenProxyServerConfig& ServerConfig, ZenServerSt
 
 	// Keep the io_context alive even when there is no pending work, so that
 	// worker threads don't exit prematurely between async operations.
-	m_ProxyIoWorkGuard = std::make_unique<asio::io_context::work>(m_ProxyIoContext);
+	m_ProxyIoWorkGuard.emplace(m_ProxyIoContext.get_executor());
 
 	// Start proxy I/O worker threads. Use a modest thread count — proxy work is
 	// I/O-bound so we don't need a thread per core, but having more than one
@@ -404,7 +404,7 @@ ZenProxyServer::Cleanup()
 			Service->Stop();
 		}
 
-		m_ProxyIoWorkGuard.reset();
+		m_ProxyIoWorkGuard.reset();	 // releases the work guard, allowing io_context to finish
 		m_ProxyIoContext.stop();
 		for (auto& Thread : m_ProxyIoThreads)
 		{