Fix incorrect path in server-demo Dockerfile CMD

The CMD entry in the Dockerfile pointed to an outdated file path. This correction ensures that the Docker container runs the correct entry point for the application.

server-demo/Dockerfile

@@ -17,7 +17,7 @@ WORKDIR /server-demo
 RUN npm ci --verbose --no-audit
 COPY . .
 RUN npm run build
-CMD ["node", "./dist/src/index.js"]
+CMD ["node", "./dist/index.js"]
 
 FROM base AS dev
 ENV NODE_ENV=development