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/route-helpers.js

@@ -20,7 +20,7 @@ function stateChange (deviceId, deviceTime, rec) {
     id: rec.uuid,
     deviceId: deviceId,
     eventType: 'stateChange',
-    note: JSON.stringify({state: rec.state, isIdle: rec.isIdle, txId: rec.txId}),
+    note: JSON.stringify({ state: rec.state, isIdle: rec.isIdle, txId: rec.txId }),
     deviceTime: deviceTime
   }
   return dbm.machineEvent(event)
@@ -93,5 +93,6 @@ module.exports = {
   stateChange,
   fetchPhoneTx,
   fetchStatusTx,
-  updateDeviceConfigVersion
+  updateDeviceConfigVersion,
+  httpError
 }