feat: update Dockerfile to remove app directory copy step

- Removed the line that copies the application files to the /app directory.

Dockerfile

@@ -26,7 +26,5 @@ RUN curl -fsSL https://deb.nodesource.com/setup_22.x -o nodesource_setup.sh && \
 # Install SSH client for GitLab CI
 RUN apt-get update && apt-get install -y --no-install-recommends openssh-client
 
-COPY . /app
-
 # Needed for GitLab CI
 ENTRYPOINT [ "/bin/sh", "-c" ]