[Feature]: BASE_PATH Add a Base Path to the docker image.

[jadehawk]

Before submitting

• I searched existing issues to avoid duplicates

Problem

Add a BASE_PATH variable to the .env so that if set, we can run the docker container from a subfolder example: mydomain.com/kcc-cloud (or whatever is set in the Variable).

Proposed solution

I wish I knew how to implement.

Additional context (optional)

No response