feat: referral hospital letter photo

src/entity/emr/emr_registration.ts

@@ -74,6 +74,9 @@ export class EmrRegistration {
 	@Column({ nullable: true, type: "text" })
 	patient_category: string;
 
+	@Column({ nullable: true, type: "text" })
+	referral_letter_photo: string;
+
 	@Column()
 	@CreateDateColumn()
 	created_at: Date;