Enhance publish workflow with wheel verification

Added steps to verify and flatten wheels before publishing.

.github/workflows/publish.yml

@@ -54,19 +54,26 @@ jobs:
     name: Publish to PyPI
     needs: [build_wheels]
     runs-on: ubuntu-latest
-    # Run on tags OR manual trigger
     if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
 
     steps:
-      - uses: actions/download-artifact@v4
-        with:
-          path: dist
-          pattern: wheels-*
-          merge-multiple: true
-          
-      - name: Publish to PyPI
-        uses: PyO3/maturin-action@v1
-        with:
-          pypi-token: ${{ secrets.PYPI_API_TOKEN }}
-          command: upload
-          args: --skip-existing --non-interactive
+    - name: Download ALL wheels
+      uses: actions/download-artifact@v4
+      with:
+        path: dist
+
+    - name: Verify & flatten wheels
+      run: |
+        find dist -name "*.whl" -exec mv {} dist/ \;
+        echo "Wheels found:"
+        ls -la dist/*.whl || echo "❌ NO WHEELS!"
+        echo "Directory:"
+        ls -la dist/
+
+    - name: Publish to PyPI
+      uses: PyO3/maturin-action@v1
+      with:
+        pypi-token: ${{ secrets.PYPI_API_TOKEN }}
+        command: upload
+        args: --skip-existing --non-interactive
+