Build, Deploy and Reverse Proxy a Rust API: HNG DevOps Stage 1

This is part of my HNG DevOps internship series. Follow along as I document every stage. Previous article: How I Secured a Linux Server from Scratch: HNG DevOps Stage 0 A Quick Recap In Stage 0, I provisioned a Linux server on Oracle Cloud, hardened SSH access, configured UFW, set up Nginx, and secured everything with a Let's Encrypt SSL certificate. If you missed that, the link is above. Stage 1 builds directly on top of that foundation. This time, the task was to write an actual API, deploy it