WIP: add new --skip-email-setup parameter to discourse-setup

[ZogStriP]

to automatically skip any email-related configuration and enable discourse id

[pmusaraj]

@ZogStriP I ran this twice on a new container, and it failed on this step:

https://github.com/discourse/discourse_docker/blob/master/templates/web.template.yml#L27

Which makes sense. To continue testing, I removed that line from the template, and then the setup continued until:

I, [2025-10-20T18:45:20.881465 #1]  INFO -- :
I, [2025-10-20T18:45:20.890094 #1]  INFO -- : File > /usr/local/bin/configure-letsencrypt  chmod: +x  chown:
I, [2025-10-20T18:45:20.897843 #1]  INFO -- : File > /usr/local/bin/letsencrypt  chmod: +x  chown:
I, [2025-10-20T18:45:20.899064 #1]  INFO -- : > echo "Beginning of custom commands"
I, [2025-10-20T18:45:20.902298 #1]  INFO -- : Beginning of custom commands

I, [2025-10-20T18:45:20.903118 #1]  INFO -- : > rails r "SiteSetting.enable_discourse_id = true"
bundler: failed to load command: script/rails (script/rails)
/var/www/discourse/lib/site_settings/type_supervisor.rb:271:in `validate_value': enable_discourse_id: You must configure Discourse ID credentials ('discourse_id_client_id' and 'discourse_id_client_secret') before enabling this setting. (Discourse::InvalidParameters)