Support SUPABASE_URL and SUPABASE_KEY secret names as fallbacks in Dockerfile build arguments

Dockerfile

@@ -5,10 +5,12 @@ WORKDIR /app/frontend
 # Declare build arguments (Hugging Face passes secrets as build args)
 ARG VITE_SUPABASE_URL
 ARG VITE_SUPABASE_ANON_KEY
+ARG SUPABASE_URL
+ARG SUPABASE_KEY
 
-# Expose them to Vite compilation environment
-ENV VITE_SUPABASE_URL=$VITE_SUPABASE_URL
-ENV VITE_SUPABASE_ANON_KEY=$VITE_SUPABASE_ANON_KEY
+# Expose them to Vite compilation environment, with fallback to Streamlit secret names
+ENV VITE_SUPABASE_URL=${VITE_SUPABASE_URL:-$SUPABASE_URL}
+ENV VITE_SUPABASE_ANON_KEY=${VITE_SUPABASE_ANON_KEY:-$SUPABASE_KEY}
 
 
 # Copy package files and install dependencies