[Enhancement]: Deploy on subdirectory

[digas111]

What features would you like to see added?

• Allow for deploying in a sub-directory (ex. myurl/librechat)
• Allow for defining the sub-directory path as an env variable

More details

This would be useful for adding to an existing stack

Which components are impacted by your request?

General

Pictures

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[jpsfs]

I'm also looking for this feature. It would simplify deployment a lot, if we don't need to add another subdomain (and potentially TLS cert) to deploy LibreChat.