chore(schema.prisma): remove Alert model from EndUser and Business models to simplify the schema and remove unnecessary relationships

refactor(alert.controller.external.ts): update the select statement in the getAlerts method to include counterparty and endUser information for better data retrieval

refactor(alert.service.ts): remove businessId and endUserId from the createAlert method parameters since they are not needed

refactor(transaction.controller.external.ts): remove the businessId query parameter from the getTransactions method since it is not used

refactor(transaction.controller.external.ts): update the select statement in the getTransactions method to include counterpartyBeneficiary and counterpartyOriginator information for better data retrieval

Author: liorzblrn