Change Docker image and update environment variables

Updated the Docker image and added admin credentials.

habitica/docker-compose.yml

@@ -11,7 +11,7 @@ services:
       - habitica
 
   habitica:
-    image: habitica/habitica:latest
+    image: habitrpg/habitica:latest  # Andere image!
     container_name: habitica-server
     restart: unless-stopped
     ports:
@@ -19,8 +19,10 @@ services:
     environment:
       - NODE_ENV=production
       - BASE_URL=http://10.1.80.6:3010
-      - SESSION_SECRET=changeme-random-secret-here-12345
       - MONGODB_URI=mongodb://mongo:27017/habitica
+      - SESSION_SECRET=changeme-random-secret-12345
+      - ADMIN_EMAIL=admin@localhost
+      - ADMIN_PASSWORD=admin123
     depends_on:
       - mongo
     networks: