release: auto-publish to crates.io on tag push

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -79,8 +79,21 @@ jobs:
             ${{ matrix.name }}.zip
             ${{ matrix.name }}.zip.sha256
 
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Publish to crates.io
+        run: cargo publish
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+
   release:
-    needs: build
+    needs: [build, publish]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/download-artifact@v4