Update environment configuration and enhance Docker setup for production deployment

- Changed NODE_ENV from development to production in .env.example for production readiness.
- Updated WEBUI_URL to point to the new public URL behind Traefik.
- Added internal and external networks in docker-compose.yml for improved service isolation and routing.
- Removed direct port exposure for the WebUI, ensuring it is only accessible through Traefik.
- Refactored landing and login pages in the WebUI to streamline navigation and error handling, redirecting users appropriately based on session status.

docker-compose.yml

@@ -7,6 +7,8 @@ services:
       POSTGRES_PASSWORD: nexumi
     volumes:
       - postgres_data:/var/lib/postgresql/data
+    networks:
+      - internal
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U nexumi -d nexumi"]
       interval: 5s
@@ -18,6 +20,8 @@ services:
     command: redis-server --appendonly yes
     volumes:
       - redis_data:/data
+    networks:
+      - internal
     healthcheck:
       test: ["CMD", "redis-cli", "ping"]
       interval: 5s
@@ -36,6 +40,8 @@ services:
         condition: service_healthy
     volumes:
       - backups:/backups
+    networks:
+      - internal
     healthcheck:
       test:
         [
@@ -57,12 +63,16 @@ services:
         condition: service_healthy
       redis:
         condition: service_healthy
-    ports:
-      - "3000:3000"
+    networks:
+      - internal
+      - traefik-network
     labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.nexumi.rule=Host(`nexumi.de`)"
-      - "traefik.http.services.nexumi.loadbalancer.server.port=3000"
+      - "traefik.docker.network=traefik-network"
+      - "traefik.http.routers.nexumi-dashboard.rule=Host(`dashboard.nexumi.de`)"
+      - "traefik.http.routers.nexumi-dashboard.entrypoints=websecure"
+      - "traefik.http.routers.nexumi-dashboard.tls.certresolver=letsencrypt"
+      - "traefik.http.services.nexumi-dashboard.loadbalancer.server.port=3000"
     healthcheck:
       test:
         [
@@ -78,3 +88,9 @@ volumes:
   postgres_data:
   redis_data:
   backups:
+
+networks:
+  traefik-network:
+    external: true
+  internal:
+    driver: bridge