añadida validacion en el backend para datos generales

docker-compose.yml

@@ -0,0 +1,25 @@
+version: '3.8'
+
+services:
+  imprimelibros-db:
+    image: mysql:8.0
+    container_name: imprimelibros-db
+    restart: unless-stopped
+    environment:
+      MYSQL_ROOT_PASSWORD: NrXz6DK6UoN
+      MYSQL_DATABASE: imprimelibros
+      MYSQL_USER: imprimelibros_user
+      MYSQL_PASSWORD: om91irrDctd
+    ports:
+      - "3306:3306"
+    volumes:
+      - db_data:/var/lib/mysql
+    networks:
+      - imprimelibros-network
+
+volumes:
+  db_data:
+
+networks:
+  imprimelibros-network:
+    driver: bridge