fix: restore release workflow for desktop builds

Accidentally deleted in 096b32a during server extraction.

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

Author: Zazza

.github/workflows/release.yml

@@ -0,0 +1,80 @@
+name: Release
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    strategy:
+      matrix:
+        include:
+          - os: macos-latest
+            goos: darwin
+            goarch: arm64
+            ext: .tar.gz
+          - os: windows-latest
+            goos: windows
+            goarch: amd64
+            ext: .zip
+          - os: ubuntu-22.04
+            goos: linux
+            goarch: amd64
+            ext: .tar.gz
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.25'
+
+      - name: Install Linux dependencies
+        if: matrix.goos == 'linux'
+        run: sudo apt-get update && sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev
+
+      - name: Setup Wails
+        run: go install github.com/wailsapp/wails/v2/cmd/wails@latest
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Build frontend
+        run: cd frontend && npm ci && npm run build
+
+      - name: Go tests
+        run: go test $(go list ./... | grep -v '/go-sd$') -count=1 -timeout 300s
+
+      - name: Go vet
+        run: go vet ./...
+
+      - name: Build
+        env:
+          VERSION: ${{ github.ref_name }}
+        run: wails build -ldflags "-X main.version=${VERSION#v}"
+
+      - name: Package (macOS)
+        if: matrix.goos == 'darwin'
+        run: tar czf sd-studio-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz -C build/bin sd-studio.app
+
+      - name: Package (Linux)
+        if: matrix.goos == 'linux'
+        run: tar czf sd-studio-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz -C build/bin sd-studio
+
+      - name: Package (Windows)
+        if: matrix.ext == '.zip'
+        shell: pwsh
+        run: Compress-Archive -Path build/bin/sd-studio.exe -DestinationPath sd-studio-${{ matrix.goos }}-${{ matrix.goarch }}.zip
+
+      - name: Upload Release Assets
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            sd-studio-${{ matrix.goos }}-${{ matrix.goarch }}.*