feat: customer auth via email

lib/graphql/resolvers.js

@@ -115,6 +115,7 @@ const staticConfig = ({ currentConfigVersion, deviceId, deviceName, pq, settings
     configManager.getOperatorInfo(settings.config),
     configManager.getReceipt(settings.config),
     !!configManager.getCashOut(deviceId, settings.config).active,
+    configManager.getCustomerAuthenticationMethod(settings.config)
   ])
     .then(([
       enablePaperWalletOnly,
@@ -125,6 +126,7 @@ const staticConfig = ({ currentConfigVersion, deviceId, deviceName, pq, settings
       operatorInfo,
       receiptInfo,
       twoWayMode,
+      customerAuthentication,
     ]) =>
       (currentConfigVersion && currentConfigVersion >= staticConf.configVersion) ?
       null :
@@ -141,6 +143,7 @@ const staticConfig = ({ currentConfigVersion, deviceId, deviceName, pq, settings
           },
           machineInfo: { deviceId, deviceName },
           twoWayMode,
+          customerAuthentication,
           speedtestFiles,
           urlsToPing,
         }),

lib/graphql/types.js

@@ -123,6 +123,11 @@ type Terms {
   details: TermsDetails
 }
 
+enum CustomerAuthentication {
+  EMAIL
+  SMS
+}
+
 type StaticConfig {
   configVersion: Int!
 
@@ -132,6 +137,7 @@ type StaticConfig {
   serverVersion: String!
   timezone: Int!
   twoWayMode: Boolean!
+  customerAuthentication: CustomerAuthentication!
 
   localeInfo: LocaleInfo!
   operatorInfo: OperatorInfo