Redirects to Tesla authorization on missing token

The application now redirects to the Tesla authorization endpoint when the access token is missing.
This ensures the user is prompted to authorize the application.

Source/ProofOfConcept/Program.cs

@@ -285,7 +285,7 @@ if (app.Environment.IsDevelopment())
         logger.LogCritical("User has access_token: {access_token} and refresh_token: {refresh_token}", access_token, refresh_token);
         
         if (String.IsNullOrEmpty(access_token))
-            return Results.LocalRedirect("/Authorize");
+            return Results.LocalRedirect("/Authorize?redirect=Tesla");
         
         HttpClient client = httpClientFactory.CreateClient("InsecureClient");
         client.BaseAddress = new Uri("https://tesla_command_proxy");