Remove ecosystem configuration file, add Docker entrypoint script, and update deployment workflow to build and push Docker images. Enhance AdminPage with Docker export functionality and improve post management API to use dynamic posts directory path.

Dockerfile

@@ -14,6 +14,10 @@ VOLUME ["/app/docker"]
 
 EXPOSE 3000
 
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]
+
 CMD ["npm", "start"]
 
 # Building Instructions