enhance train scheduling and booking management

apps/edr-freight-api/src/modules/otp/otp.entity.ts

@@ -7,6 +7,11 @@ import {
 import { BaseEntity } from "@edr/api-common";
 
 @Entity({
+  // Table lives in the freight schema like every other freight entity. Without
+  // this the entity inherits the DataSource default schema (public), so TypeORM
+  // queries public.otp_verifications — which doesn't exist — and OTP verify
+  // (e.g. the contract-signature sudo gate) fails with a 500 QueryFailedError.
+  schema: "freight",
   name: "otp_verifications",
 })
 export class OtpVerification extends BaseEntity{