Add /api/info endpoint for build time, title.js, UI tweaks

Program.cs

@@ -22,5 +22,6 @@ app.MapHistoryEndpoint();
 app.MapSessionEndpoints();
 app.MapAgentEndpoints();
 app.MapWorkspaceEndpoint();
+app.MapInfoEndpoint();
 
 app.Run("http://0.0.0.0:19000");