Refactor Docker Compose configuration to use pre-built images for services

- Updated the frontend and backend services to use pre-built images instead of build contexts.
- Set pull_policy to never to prevent automatic image pulls, ensuring consistent deployments.

compose-plesk.yaml

@@ -4,12 +4,10 @@
 
 services:
   frontend:
-    build:
+    image: portal-frontend
-      context: /var/www/vhosts/asolutions.jp/httpdocs
-      dockerfile: apps/portal/Dockerfile
-      target: production
     container_name: portal-frontend
     network_mode: host
+    pull_policy: never
     environment:
       - NODE_ENV=production
       - PORT=3000
@@ -26,12 +24,10 @@ services:
       retries: 3
 
   backend:
-    build:
+    image: portal-backend
-      context: /var/www/vhosts/asolutions.jp/httpdocs
-      dockerfile: apps/bff/Dockerfile
-      target: production
     container_name: portal-backend
     network_mode: host
+    pull_policy: never
     environment:
       - NODE_ENV=production
       - PORT=4000