fix: copy application files directly into image root

- Copy tienda_ilusion contents to /app/ instead of subdirectory
- Remove volume mount from production docker-compose.yml
- Allows deployment without repository dependency

Refs #37

docker-compose.yml

@@ -3,8 +3,6 @@ services:
     image: gitea.onecluster.org/oneteam/don_confiao_backend:latest
     env_file:
       - .env
-    volumes:
-      - ./tienda_ilusion:/app/
     ports:
       - "7000:9090"