ci: smoke test release archives

.github/workflows/release.yml

@@ -59,9 +59,25 @@ jobs:
           mkdir -p "${pkg}" dist
           cp "target/release/${{ matrix.binary }}" "${pkg}/"
           cp README.md "${pkg}/"
+          cp LICENSE-* "${pkg}/"
           cp -R docs "${pkg}/docs"
           tar -czf "dist/${pkg}.tar.gz" "${pkg}"
 
+      - name: Smoke-test Unix artifact
+        if: runner.os != 'Windows'
+        shell: bash
+        run: |
+          set -euo pipefail
+          version="${GITHUB_REF_NAME:-manual}"
+          pkg="geth-${version}-${{ matrix.target }}"
+          mkdir -p smoke
+          tar -xzf "dist/${pkg}.tar.gz" -C smoke
+          "smoke/${pkg}/${{ matrix.binary }}" --version
+          test -f "smoke/${pkg}/README.md"
+          test -f "smoke/${pkg}/LICENSE-MIT"
+          test -f "smoke/${pkg}/LICENSE-APACHE"
+          test -d "smoke/${pkg}/docs"
+
       - name: Package Windows artifact
         if: runner.os == 'Windows'
         shell: pwsh
@@ -71,9 +87,24 @@ jobs:
           New-Item -ItemType Directory -Force -Path $pkg, dist | Out-Null
           Copy-Item "target/release/${{ matrix.binary }}" "$pkg/"
           Copy-Item README.md "$pkg/"
+          Copy-Item LICENSE-* "$pkg/"
           Copy-Item docs "$pkg/docs" -Recurse
           Compress-Archive -Path "$pkg/*" -DestinationPath "dist/$pkg.zip" -Force
 
+      - name: Smoke-test Windows artifact
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          $version = if ($env:GITHUB_REF_NAME) { $env:GITHUB_REF_NAME } else { "manual" }
+          $pkg = "geth-$version-${{ matrix.target }}"
+          New-Item -ItemType Directory -Force -Path smoke | Out-Null
+          Expand-Archive -Path "dist/$pkg.zip" -DestinationPath "smoke/$pkg" -Force
+          & "smoke/$pkg/${{ matrix.binary }}" --version
+          if (!(Test-Path "smoke/$pkg/README.md")) { throw "README.md missing from archive" }
+          if (!(Test-Path "smoke/$pkg/LICENSE-MIT")) { throw "LICENSE-MIT missing from archive" }
+          if (!(Test-Path "smoke/$pkg/LICENSE-APACHE")) { throw "LICENSE-APACHE missing from archive" }
+          if (!(Test-Path "smoke/$pkg/docs")) { throw "docs missing from archive" }
+
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with: