refactor(bookings): replace RFQ/quotation flow with submit, staff review, approval routing, and payment stubs

apps/edr-freight-api/src/modules/bookings/booking-status.util.ts

@@ -0,0 +1,10 @@
+import { ConflictException } from '@nestjs/common';
+import { Booking } from './entities/booking.entity';
+
+export function assertBookingStatus(booking: Booking, allowed: string[]): void {
+  if (!allowed.includes(booking.status)) {
+    throw new ConflictException(
+      `Cannot perform this action on status "${booking.status}". Allowed: ${allowed.join(', ')}`,
+    );
+  }
+}