Refactor Docker Compose configuration to enhance network management

- Removed network_mode settings for services and replaced them with a dedicated portal-network.
- Ensured all services are connected to the new bridge network for improved communication and organization.

compose-plesk.yaml

@@ -6,9 +6,10 @@ services:
   frontend:
     image: portal-frontend:latest
     container_name: portal-frontend
-    network_mode: bridge
     ports:
-      - "127.0.0.1:3000:3000"  # Only accessible from localhost for security
+      - "127.0.0.1:3000:3000"
+    networks:
+      - portal-network
     environment:
       - NODE_ENV=production
       - PORT=3000
@@ -27,9 +28,10 @@ services:
   backend:
     image: portal-backend:latest
     container_name: portal-backend
-    network_mode: bridge
     ports:
       - "127.0.0.1:4000:4000"
+    networks:
+      - portal-network
     environment:
       - NODE_ENV=production
       - PORT=4000
@@ -76,9 +78,8 @@ services:
   database:
     image: postgres:17-alpine
     container_name: portal-database
-    network_mode: bridge
-    ports:
-      - "127.0.0.1:5432:5432"  # Only accessible from localhost for security
+    networks:
+      - portal-network
     environment:
       - POSTGRES_DB=${POSTGRES_DB}
       - POSTGRES_USER=${POSTGRES_USER}
@@ -96,9 +97,8 @@ services:
   cache:
     image: redis:7-alpine
     container_name: portal-cache
-    network_mode: bridge
-    ports:
-      - "127.0.0.1:6379:6379"  # Only accessible from localhost for security
+    networks:
+      - portal-network
     volumes:
       - redis_data:/data
     restart: unless-stopped
@@ -113,3 +113,8 @@ volumes:
     driver: local
   redis_data:
     driver: local
+
+networks:
+  portal-network:
+    driver: bridge
+    name: portal-network