Remove chmod commands - /data is already writable in HF Spaces

Dockerfile

@@ -24,18 +24,16 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY . .
 
 # Create directories for uploads and results
-# Ensure writable data directory exists for Spaces
-RUN mkdir -p /data/uploads /data/results && chmod -R 777 /data
+# Note: /data is already writable in Hugging Face Spaces, no chmod needed
+RUN mkdir -p /data/uploads /data/results
 
 # Handle Firebase credentials from environment variable (for Hugging Face Spaces secrets)
 # This allows the credentials to be passed as a secret and written to file at runtime
 RUN echo '#!/bin/sh' > /entrypoint.sh && \
     echo 'set -e' >> /entrypoint.sh && \
-    echo 'mkdir -p /data/uploads /data/results' >> /entrypoint.sh && \
-    echo 'chmod -R 777 /data' >> /entrypoint.sh && \
+    echo 'mkdir -p /data/uploads /data/results /data/hf_cache' >> /entrypoint.sh && \
     echo 'if [ -n "$FIREBASE_CREDENTIALS" ]; then' >> /entrypoint.sh && \
     echo '  printf "%s" "$FIREBASE_CREDENTIALS" > /data/firebase-adminsdk.json' >> /entrypoint.sh && \
-    echo '  chmod 600 /data/firebase-adminsdk.json' >> /entrypoint.sh && \
     echo 'fi' >> /entrypoint.sh && \
     echo 'exec "$@"' >> /entrypoint.sh && \
     chmod +x /entrypoint.sh