Add GoReleaser GitHub Actions workflow

- Create release.yml workflow for automated releases
- Trigger on version tags (v*.*.*)
- Use goreleaser-action v6 with GoReleaser v2
- Configure proper permissions for GitHub releases
- Upload release artifacts for archival

Author: claude

.github/workflows/release.yml

@@ -0,0 +1,45 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+permissions:
+  contents: write
+  packages: write
+
+jobs:
+  goreleaser:
+    name: GoReleaser
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Required for changelog generation
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          distribution: goreleaser
+          version: '~> v2'
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: release-artifacts
+          path: |
+            dist/*.tar.gz
+            dist/*.zip
+            dist/checksums.txt
+          retention-days: 5