Fix data path: download HF dataset to /app so files land at /app/data/

Dockerfile

@@ -10,10 +10,8 @@ COPY . .
 ENV HF_DATASET_REPO=Binxk/goon-data
 ENV DATA_DIR=/app/data
 
-RUN mkdir -p /app/data
-
 EXPOSE 8501
 
 CMD ["sh", "-c", \
-  "python -c \"import os; from huggingface_hub import snapshot_download; snapshot_download(repo_id=os.environ['HF_DATASET_REPO'], repo_type='dataset', local_dir=os.environ['DATA_DIR'])\" && \
+  "python -c \"from huggingface_hub import snapshot_download; snapshot_download(repo_id='Binxk/goon-data', repo_type='dataset', local_dir='/app')\" && \
   streamlit run app.py --server.port=8501 --server.address=0.0.0.0"]