ci: add PR checks and release workflows

Add merge.yml for PR validation (build, clippy, fmt, tests, dry-run publish)
and release.yml for publishing to crates.io via release-plz.

Author: grumbach

.github/workflows/merge.yml

@@ -0,0 +1,95 @@
+name: Merge Requirements
+
+on: [pull_request]
+
+env:
+  RUST_BACKTRACE: 1
+  RUSTFLAGS: "-D warnings"
+
+jobs:
+  build:
+    name: Build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Build
+        run: cargo build --release
+
+  checks:
+    name: Enforce Clippy constraints
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Run Clippy
+        run: cargo clippy --all-targets --all-features
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+
+      - name: Check formatting
+        run: cargo fmt --all -- --check
+
+  tests:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Run tests
+        run: cargo test --release
+
+  test-publish:
+    name: Dry run publish
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Dry run publish
+        run: cargo publish --dry-run

.github/workflows/release.yml

@@ -0,0 +1,57 @@
+name: Release
+
+on:
+  workflow_dispatch:
+
+env:
+  RUST_BACKTRACE: 1
+
+jobs:
+  build:
+    name: Build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Run cargo build
+        run: cargo build --release
+
+  publish:
+    name: Publish
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: "0"
+          token: ${{ secrets.EVMLIB_PAT }}
+      - uses: dtolnay/rust-toolchain@stable
+
+      - shell: bash
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+
+      - uses: cargo-bins/cargo-binstall@main
+      - shell: bash
+        run: cargo binstall --no-confirm release-plz
+
+      - name: Publish crates
+        shell: bash
+        run: |
+          cargo login "${{ secrets.CRATES_IO_TOKEN }}"
+          release-plz release --git-token ${{ secrets.EVMLIB_PAT }}

release-plz.toml

@@ -0,0 +1,7 @@
+[workspace]
+changelog_update = false
+semver_check = false
+
+[[package]]
+name = "evmlib"
+git_tag_name = "v{{ version }}"