All deployments

Adjust the sample size from 3 to 6 for better project visibility.

Dynamically set the assistant script URL based on staging environment.

Upgrade actioncable, actionmailbox, actionmailer, actionpack,
actiontext, actionview, activejob, activemodel, activerecord,
activestorage, activesupport, railties, pg, and puma to latest
versions for improved stability and performance.

Remove embeds from the user joined notification for a cleaner message.

Define the PORT environment variable for the web server to ensure proper configuration.