chore: add GitHub release workflow and crates.io publishing

Author: sile

.github/workflows/release.yml

@@ -0,0 +1,31 @@
+name: Create GitHub Release and Publish to crates.io
+
+on:
+  push:
+    tags: ['v*']
+
+jobs:
+  github-release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v5
+
+      - id: create-release
+        run: gh release create ${{ github.ref_name }} --title "${{ github.ref_name }}" --generate-notes
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  publish:
+    runs-on: ubuntu-latest
+    # environment: release  # Optional: for enhanced security
+    permissions:
+      id-token: write
+    steps:
+    - uses: actions/checkout@v5
+    - uses: rust-lang/crates-io-auth-action@v1
+      id: auth
+    - run: cargo publish
+      env:
+        CARGO_REGISTRY_TOKEN: ${{ steps.auth.outputs.token }}