fix: force platform-specific wheels instead of py3-none-any

- Add setup.py with BinaryDistribution to mark package as platform-specific
- This ensures manylinux wheels include architecture (manylinux_2_17_x86_64 vs manylinux_2_17_aarch64)
- Download wheels separately (merge-multiple: false) to prevent filename collisions
- Fixes issue where both linux/amd64 and linux/arm64 created identical py3-none-any.whl filenames

Author: tae898

.github/workflows/release-python-packages.yml

@@ -98,6 +98,17 @@ jobs:
           name: wheel-${{ matrix.platform }}-test
           path: dist/
 
+      - name: Verify wheel was downloaded
+        shell: bash
+        run: |
+          echo "📦 Checking for wheel-${{ matrix.platform }}-test..."
+          ls -lh dist/
+          if [ ! -f dist/*.whl ]; then
+            echo "❌ No wheel found for ${{ matrix.platform }}!"
+            exit 1
+          fi
+          echo "✅ Wheel found for ${{ matrix.platform }}"
+
       - name: Re-upload wheel for release
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
@@ -113,12 +124,21 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - name: Download all wheels
+      - name: Download all wheels (separately to avoid overwrites)
         uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
         with:
           pattern: wheel-*
-          path: dist/
-          merge-multiple: true
+          path: wheels-temp/
+          merge-multiple: false  # Keep in separate directories
+
+      - name: Collect wheels into single directory
+        shell: bash
+        run: |
+          mkdir -p dist
+          # Copy all wheels from subdirectories to dist/
+          find wheels-temp -name "*.whl" -exec cp {} dist/ \;
+          echo "📦 Collected wheels:"
+          ls -lh dist/
 
       - name: Verify wheels
         run: |

bindings/python/Dockerfile.build

@@ -105,6 +105,7 @@ COPY --from=jre-builder /build/jre /build/jre/
 # Copy Python bindings source
 COPY bindings/python/src ./src
 COPY bindings/python/tests ./tests
+COPY bindings/python/setup.py .
 COPY bindings/python/setup_jars.py .
 COPY bindings/python/extract_version.py .
 COPY bindings/python/write_version.py .

bindings/python/setup.py

@@ -0,0 +1,22 @@
+"""
+Setup configuration for arcadedb-embedded.
+
+This file forces the wheel to be platform-specific (not py3-none-any)
+because we bundle platform-specific JRE binaries.
+"""
+
+from setuptools import setup
+from setuptools.dist import Distribution
+
+
+class BinaryDistribution(Distribution):
+    """Mark package as having platform-specific content."""
+
+    def has_ext_modules(self):
+        # Return True to indicate this is a platform-specific package
+        # even though we don't have C extensions
+        return True
+
+
+# All other configuration is in pyproject.toml
+setup(distclass=BinaryDistribution)