Refactor Hugging Face sync workflow

Updated workflow to include full git history and LFS support.

.github/workflows/sync-to-hf.yml

@@ -1,15 +1,22 @@
 name: Sync to Hugging Face Hub
 on:
   push:
-    branches: [main] # Update this if your default branch is 'master'
+    branches: [main] # Change to master if needed
+  workflow_dispatch:
 
 jobs:
-  sync:
+  sync-to-hub:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: huggingface/hub-sync@v0.1.0
+      - name: Checkout Code with Full History
+        uses: actions/checkout@v4
         with:
-          github_repo_id: ${{ github.repository }}
-          huggingface_repo_id: build-small-hackathon/step-zero
-          hf_token: ${{ secrets.HF_TOKEN }}
+          fetch-depth: 0 # <-- CRUCIAL: Fetches ALL git history instead of just the latest commit
+          lfs: true      # Includes Git LFS files if you have large model weights
+
+      - name: Push Git History to Hugging Face
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        run: |
+          # Push the history using your token for authentication
+          git push --force https://build-small-hackathon:$HF_TOKEN@huggingface.co/spaces/build-small-hackathon/step-zero main