Refactor: server.js: Move app.js require to top
Refactor: server.js: Move app.js require to top

Now that app.js no longer depends on environment
variables, we can move the require() line to
the top of the file, following standard practice.

holmwell/circle-blvd,holmwell/circle-blvd,secret-project/circle-blvd,holmwell/circle-blvd,secret-project/circle-blvd,secret-project/circle-blvd,holmwell/circle-blvd,secret-project/circle-blvd