ci: add Go binary release workflow (tag v* → GitHub Releases)

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+name: Release Go binaries
+on:
+  push:
+    tags: ['v*']
+permissions:
+  contents: write
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - goos: linux
+            goarch: amd64
+          - goos: linux
+            goarch: arm64
+          - goos: darwin
+            goarch: amd64
+          - goos: darwin
+            goarch: arm64
+          - goos: windows
+            goarch: amd64
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with: { go-version: '1.25' }
+      - name: Build
+        run: |
+          GOOS=${{ matrix.goos }} GOARCH=${{ matrix.goarch }} \
+            go build -o molecli-${{ matrix.goos }}-${{ matrix.goarch }}${{ matrix.goos == 'windows' && '.exe' || '' }} \
+            ./cmd/molecli
+      - uses: softprops/action-gh-release@v2
+        with:
+          files: molecli-*