Keep warm wasm workers alive

src/linux_fastcgi.cpp

@@ -1352,6 +1352,10 @@ void listen_for_connections()
 	// Workers are uniform FastCGI/CLI renderers; the WS broker owns the HTTP/WS
 	// port and every connection, so workers never accept raw HTTP themselves.
 	server.close_http_listeners();
+	// The transport's legacy eight-connection recycle predates persistent
+	// Wasmtime engines. Recycling makes every ninth request pay engine/module
+	// startup; request-scoped workspaces already isolate and release user state.
+	server.calls_until_termination = -1;
 	server.on_request = &handle_request;
 	server.on_data = &handle_data;
 	server.on_complete = &handle_complete;