implement exchange settings management and fallback rate handling

apps/edr-freight-api/src/modules/bookings/bookings.module.ts

@@ -1,8 +1,8 @@
 import { Module, forwardRef } from "@nestjs/common";
 import { UserTradeAccessModule } from "../user-trade-access/user-trade-access.module";
-import { ConfigService } from "@nestjs/config";
 import { TypeOrmModule } from "@nestjs/typeorm";
-import { ExchangeModule, ExchangeOptions } from "@edr/api-common";
+
+import { registerExchangeModule } from "../exchange-settings/exchange-module-options";
 
 // import { CustomersModule } from '../customers/customers.module';
 import { CompaniesModule } from '../companies/companies.module';
@@ -86,11 +86,7 @@ import { VehiclesModule } from "../vehicles/vehicles.module";
     RuleEngineModule,
     FileUploadSettingsModule,
     SignaturesModule,
-    ExchangeModule.forRootAsync({
-      inject: [ConfigService],
-      useFactory: (config: ConfigService): ExchangeOptions =>
-        config.get<ExchangeOptions>("app.cbeExchange") ?? {},
-    }),
+    registerExchangeModule(),
   ],
   controllers: [BookingsController],
   providers: [