ip changed in dockerfile

frontend/Dockerfile

@@ -18,7 +18,7 @@ COPY . .
 # built, not when the container starts — rebuild the image to point it elsewhere.
 # `.env.production.local` outranks every other env file, so this wins over the empty
 # VITE_API_BASE in .env.production (which means "same origin, behind a proxy").
-ARG VITE_API_BASE=http://localhost:8000
+ARG VITE_API_BASE=http://172.16.204.191:8000
 RUN printf 'VITE_API_BASE=%s\n' "$VITE_API_BASE" > .env.production.local \
     && npm run build