Move connection logic into connection class

- Moved everything I could into the class itself.
- Improve the logging situation a bit.
- Switch some trace logs to debug.
- Get debug port from message arguments.

src/node/routes/index.ts

@@ -41,7 +41,7 @@ export const register = async (
         if (error) {
           return reject(error)
         }
-        logger.trace(plural(count, `${count} active connection`))
+        logger.debug(plural(count, `${count} active connection`))
         resolve(count > 0)
       })
     })