Sync build fix

.github/workflows/create-release.yml

@@ -93,13 +93,23 @@ jobs:
         uses: actions/download-artifact@v8
         with:
           name: backend-onedir-${{ runner.os }}
-          path: dist/run_app
+          path: dist/release
+      - name: Extract Backend Artifact
+        run: |
+          mkdir -p dist/run_app
+          python -c "import os, tarfile; archive = f'dist/release/backend-onedir-{os.environ[\"RUNNER_OS\"]}.tar.gz'; tarfile.open(archive, 'r:gz').extractall('dist')"
+          ls -la dist/run_app
+        shell: bash
+      - name: Verify Extracted Backend Bundle
+        run: |
+          python -c "import os; runner_os = os.environ['RUNNER_OS']; expected = os.path.join('dist', 'run_app', 'run_app.exe' if runner_os == 'Windows' else 'run_app'); import sys; import pathlib; expected_path = pathlib.Path(expected); sys.exit(0 if expected_path.is_file() else f'Expected backend executable not found after extraction: {expected}')"
+        shell: bash
       - name: Set version in electron/package.json
         run: |
           VERSION="${{ env.RELEASE_VERSION }}"
           VERSION_CLEAN="${VERSION#v}"
           # Use python for cross-platform JSON editing to avoid sed incompatibilities
-          python3 -c "import json; p='electron/package.json'; d=json.load(open(p)); d['version']='${VERSION_CLEAN}'; json.dump(d, open(p, 'w'), indent=2)"
+          python -c "import json; p='electron/package.json'; d=json.load(open(p)); d['version']='${VERSION_CLEAN}'; json.dump(d, open(p, 'w'), indent=2)"
         shell: bash
       - name: Build Electron App
         run: |