Update templates

.templates/postgres.yml

@@ -1,16 +1,19 @@
 services:
   db:
     container_name: db
-    image: docker.io/library/postgres:17.5
+    image: docker.io/library/postgres:18.1@sha256:f42fe58fa146f29072559fcb855cc2e93e2c9ab08c1cbe7c5db4973d665e3d86
     restart: unless-stopped
     environment:
       - POSTGRES_USER=${POSTGRES_USER}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
       - POSTGRES_DB=${POSTGRES_DB}
+      - PGDATA=/var/lib/postgresql/18/docker
     volumes:
-      - ${APPDATA_PATH}//db:/var/lib/postgresql/data
+      - ${APPDATA_PATH}//db:/var/lib/postgresql
     ports:
       - ${DB_PORT}:5432
+    networks:
+      - backend
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -d ${POSTGRES_DB} -U ${POSTGRES_USER}"]
       interval: 10s