szal 1.2.0

Workflow engine — step/flow execution with branching, retry, rollback, and parallel stages
Documentation 
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name: Release

on:
  push:
    tags: ["*"]
  workflow_dispatch:
    inputs:
      version:
        description: 'Version to release (e.g., 0.23.5). Creates tag + release.'
        required: true
        type: string

permissions:
  contents: write
  id-token: write        # Sigstore OIDC token for keyless signing
  attestations: write    # SLSA provenance attestations

concurrency:
  group: release-${{ github.ref }}
  cancel-in-progress: false

jobs:
  ci:
    name: CI Gate
    uses: ./.github/workflows/ci.yml
    permissions:
      contents: read
      actions: read

  build:
    name: Build (${{ matrix.name }})
    runs-on: ${{ matrix.os }}
    needs: [ci]
    timeout-minutes: 30
    strategy:
      fail-fast: false
      matrix:
        include:
          - target: x86_64-unknown-linux-gnu
            os: ubuntu-latest
            name: linux-amd64
          - target: aarch64-unknown-linux-gnu
            os: ubuntu-latest
            name: linux-arm64
            cross: true
          - target: aarch64-apple-darwin
            os: macos-latest
            name: macos-arm64
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}
      - uses: Swatinem/rust-cache@v2
        with:
          key: ${{ matrix.target }}
      - name: Cross deps (arm64)
        if: matrix.cross
        run: |
          sudo apt-get update
          sudo apt-get install -y gcc-aarch64-linux-gnu
          mkdir -p .cargo
          echo '[target.aarch64-unknown-linux-gnu]' >> .cargo/config.toml
          echo 'linker = "aarch64-linux-gnu-gcc"' >> .cargo/config.toml
      - run: cargo build --release --target ${{ matrix.target }}
      - name: Generate SLSA provenance
        uses: actions/attest-build-provenance@v2
        with:
          subject-path: target/${{ matrix.target }}/release/libszal*

  publish:
    name: Publish to crates.io
    runs-on: ubuntu-latest
    needs: [ci, build]
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - name: Verify version
        run: |
          FILE_VERSION=$(cat VERSION | tr -d '[:space:]')
          TAG_VERSION="${GITHUB_REF_NAME}"
          [ "$FILE_VERSION" = "$TAG_VERSION" ] || { echo "VERSION mismatch"; exit 1; }
      - run: cargo publish
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

  release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: [ci, build, publish]
    steps:
      - uses: actions/checkout@v4
      - uses: softprops/action-gh-release@v2
        with:
          generate_release_notes: true