Update publish workflow with debugging steps

.github/workflows/publish.yml

@@ -62,18 +62,27 @@ jobs:
       with:
         path: dist
 
-    - name: Verify & flatten wheels
+    - name: Debug - List ALL files
       run: |
-        find dist -name "*.whl" -exec mv {} dist/ \;
-        echo "Wheels found:"
-        ls -la dist/*.whl || echo "❌ NO WHEELS!"
-        echo "Directory:"
+        echo "=== FULL TREE ==="
+        find dist -type f | head -20
+        echo "=== WHEELS ONLY ==="
+        find dist -name "*.whl" || echo "❌ NO .whl FILES FOUND"
+        echo "=== dist/ CONTENTS ==="
         ls -la dist/
 
+    - name: Flatten wheels to dist/
+      run: |
+        mkdir -p dist/wheels
+        find dist -name "*.whl" -exec cp {} dist/ \;
+        echo "FINAL dist/ wheels:"
+        ls -la dist/*.whl || echo "❌ STILL NO WHEELS"
+
     - name: Publish to PyPI
       uses: PyO3/maturin-action@v1
       with:
-        token: ${{ secrets.PYPI_API_TOKEN }}
+        token: ${{ secrets.PYPI_API_TOKEN }}  # ← FIXED: token not pypi-token
         command: upload
         args: --skip-existing --non-interactive
 
+