Update Dockerfile

Dockerfile

@@ -1,9 +1,9 @@
-# Use the official ChartDB image
-FROM chartdb/chartdb:latest
+# Use the correct GitHub Container Registry path
+FROM ghcr.io/chartdb/chartdb:latest
 
-# Hugging Face Spaces uses port 7860 by default
+# HF Spaces requires the app to listen on port 7860
 ENV PORT 7860
 EXPOSE 7860
 
-# Start the application
+# Command to start ChartDB
 CMD ["npm", "start"]