feat(reg): add flaggin of is referral emergency

src/entity/emr/emr_registration.ts

@@ -77,6 +77,9 @@ export class EmrRegistration {
 	@JoinColumn({ name: "referral_hospital_id" })
 	referral_hospital: RefferalHospital;
 
+	@Column({ nullable: false, type: "boolean", default: false })
+	is_referral_emergency: boolean;
+
 	@Column({ nullable: true, type: "text" })
 	patient_category: string;