Feat: implement per operator settings cache

Fix: fix linter-found issues

Chore: move findOperatorId to own middleware file

Chore: delete old routes.js file and rename new-routes.js to routes.js

Fix: PR fixes

lib/routes/verifyTxRoutes.js

@@ -12,4 +12,4 @@ function verifyTx (req, res, next) {
 
 router.post('/', verifyTx)
 
-module.exports = router
+module.exports = router