fix bug

scripts/push_to_hf.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+# Push current branch to Hugging Face Spaces (main), removing binary xlsx from history.
+# HF rejects binary files; student-version history contains the xlsx, so we push a cleaned branch.
+set -e
+BRANCH="${1:-student-version}"
+REMOTE="${2:-huggingface}"
+HF_BRANCH="${3:-hf-push}"
+
+echo "Creating $HF_BRANCH from $BRANCH, stripping data/National_Directory_SU_2024.xlsx from history..."
+git checkout -B "$HF_BRANCH" "$BRANCH"
+FILTER_BRANCH_SQUELCH_WARNING=1 git filter-branch -f --index-filter 'git rm --cached --ignore-unmatch data/National_Directory_SU_2024.xlsx' --prune-empty HEAD
+
+echo "Pushing $HF_BRANCH to $REMOTE main (force)..."
+git push "$REMOTE" "$HF_BRANCH:main" --force
+
+echo "Switching back to $BRANCH and deleting $HF_BRANCH..."
+git checkout "$BRANCH"
+git branch -D "$HF_BRANCH"
+
+echo "Done. Space updated: https://huggingface.co/spaces/phanny/6.C395-chatbot"