feat: booking can only in between specified hours

every booking happening outside these hours will be clamped to the hours
also added few more config options + regex filters

Backend/main.go

@@ -52,6 +52,8 @@ func main() {
 
 	defer models.DB.(*sql.DB).Close()
 
+	models.Options = configure()
+
 	if helper.GetEnv("GO_ENV", "production") != "debug" {
 		err = Migrate()
 		if err != nil {
@@ -114,3 +116,10 @@ func loggingMiddleware(next http.Handler) http.Handler {
 		slog.Info("Completet Request", slog.String("Time", time.Since(start).String()))
 	})
 }
+
+func configure() models.BookingOptions {
+	return models.BookingOptions{
+		AllowOutOfBounds: helper.GetEnv("BOOKING_OUT_OF_BOUNDS", "false") == "true",
+		AllowUnknownUser: helper.GetEnv("BOOKING_FOR_UNKNOWN_USER", "false") == "true",
+	}
+}