[FEATURE] Staging Environment

**Is your feature request related to a problem? Please describe.**
A staging area should be available for the backend.

**Describe the solution you'd like**
Setup a CI/CD pipeline to deploy to the staging environment.

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.

No files, tests, or entry points are identified in the issue; start by reviewing the repository's deployment and CI configuration. Done means a CI/CD pipeline deploys the backend to a staging environment.

Written by the indexing model from the issue text.