forjar 1.4.2

Rust-native Infrastructure as Code — bare-metal first, BLAKE3 state, provenance tracing
Documentation 
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# Minimum Supported Rust Version verification
# Ensures the crate compiles on the declared rust-version from Cargo.toml

name: MSRV Check

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

concurrency:
  group: msrv-${{ github.event.pull_request.number || github.sha }}
  cancel-in-progress: true

jobs:
  msrv:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2

      - name: Checkout provable-contracts (path dep)
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
        with:
          repository: paiml/provable-contracts
          path: provable-contracts

      - name: Symlink provable-contracts for Cargo path deps
        run: ln -sf "$GITHUB_WORKSPACE/provable-contracts" "$GITHUB_WORKSPACE/../provable-contracts"

      - name: Install MSRV toolchain
        # rust: 1.89.0 (bumped from 1.88 — aprender-contracts 0.30 requires 1.89)
        run: |
          rustup toolchain install 1.89.0 --profile minimal
          rustup override set 1.89.0

      - name: Cache cargo
        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684  # v4.2.3
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: msrv-${{ runner.os }}-${{ hashFiles('**/Cargo.lock') }}

      - name: Generate contract assertions — pv codegen
        run: |
          if ! command -v pv >/dev/null 2>&1; then
            cargo install provable-contracts-cli --locked || true
          fi
          PV=$(command -v pv 2>/dev/null || true)
          if [ -z "$PV" ]; then
            echo "::warning::pv not found — skipping contract generation"
          else
            PC_CONTRACTS="$GITHUB_WORKSPACE/../provable-contracts/contracts"
            if [ -f src/lib.rs ] && grep -q 'mod generated_contracts' src/lib.rs && [ ! -f src/generated_contracts.rs ]; then
              if [ -d "$PC_CONTRACTS" ]; then
                "$PV" codegen "$PC_CONTRACTS" -o src/generated_contracts.rs || true
              elif [ -d contracts ]; then
                "$PV" codegen contracts/ -o src/generated_contracts.rs || true
              fi
            fi
          fi

      - name: Verify MSRV compiles
        run: cargo check --all-targets