Add initial frontend and backend

backend/pkg/utils/utils.go

@@ -0,0 +1,12 @@
+package utils
+
+import (
+	"os"
+)
+
+func GetEnv(key, fallback string) string {
+	if value, ok := os.LookupEnv(key); ok {
+		return value
+	}
+	return fallback
+}