CHANGE: added Frontend + auth

Backend/helper/system.go

@@ -7,7 +7,6 @@ import (
 // Returns env with default fallback value.
 //
 // Params:
-//
 //	key - enviroment var name
 //	fallback - default value
 func GetEnv(key, fallback string) string {

Backend/helper/types.go

@@ -0,0 +1,9 @@
+package helper
+
+import "time"
+
+type TimeFormValue struct {
+	TsFrom time.Time
+	TsTo time.Time
+	CardUID string
+}