Refactor layout and home page for improved localization and session handling

- Updated RootLayout to include locale support and integrated ThemeProvider and LocaleProvider for better internationalization.
- Replaced static home page content with a redirect based on user session status, enhancing user experience by directing to the appropriate dashboard or login page.
- Switched font from Geist to Inter for improved typography consistency.

docker-compose.yml

@@ -48,15 +48,31 @@ services:
       start_period: 40s
 
   webui:
-    image: node:22-alpine
-    working_dir: /app
-    command: sh -c "node -e \"require('http').createServer((_,res)=>res.end('webui scaffold')).listen(3000)\""
+    build:
+      context: .
+      dockerfile: apps/webui/Dockerfile
+    env_file: .env
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
     ports:
       - "3000:3000"
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.nexumi.rule=Host(`nexumi.de`)"
       - "traefik.http.services.nexumi.loadbalancer.server.port=3000"
+    healthcheck:
+      test:
+        [
+          "CMD-SHELL",
+          "node -e \"fetch('http://127.0.0.1:3000/api/health').then((r)=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))\""
+        ]
+      interval: 15s
+      timeout: 5s
+      retries: 5
+      start_period: 30s
 
 volumes:
   postgres_data: