add props.connect_code

tools/server/server-context.cpp

@@ -4618,6 +4618,10 @@ static json get_res_props(const server_context_meta & meta, const common_params
         { "is_sleeping",                 is_sleeping },
         { "cors_proxy_enabled",          params.ui_mcp_proxy },
     };
+
+    if (!params.server_connect_code.empty()) {
+        props["connect_code"] = params.server_connect_code;
+    }
     if (params.use_jinja) {
         if (!tmpl_tools.empty()) {
             props["chat_template_tool_use"] = tmpl_tools;