fix(ci): restore Homebrew tap update in release job

The multi-platform matrix refactor (fc53bf6) accidentally deleted the
release job containing the Homebrew tap update. Restored with:

- Build jobs now upload artifacts (linux, macos, windows zips)
- New release job triggers on tag pushes
- Downloads artifacts and creates GitHub release
- Updates homebrew-lbpssh-tap cask with new version and sha256

Author: liuboping

.github/workflows/ci.yml

@@ -26,9 +26,111 @@ jobs:
           sudo apt-get install -y libgtk-3-dev liblzma-dev libstdc++-12-dev
       - run: flutter pub get
       - run: flutter test
-      - run: flutter build linux --release
+      - name: Build Linux
         if: matrix.platform == 'ubuntu-latest'
-      - run: flutter build macos --release
+        run: |
+          flutter build linux --release
+          cd build/linux/x64/release/bundle
+          zip -r lbpSSH-linux-x64.zip .
+      - name: Build macOS
+        if: matrix.platform == 'macos-latest'
+        run: |
+          flutter build macos --release --no-tree-shake-icons
+          cd build/macos/Build/Products/Release
+          zip -r lbpSSH-macos-universal.zip lbpSSH.app
+      - name: Build Windows
+        if: matrix.platform == 'windows-latest'
+        run: |
+          flutter build windows --release
+          Compress-Archive -Path build/windows/x64/runner/Release -DestinationPath build/windows/lbpSSH-windows-x64.zip
+      - name: Upload Linux build
+        if: matrix.platform == 'ubuntu-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: linux-build
+          path: build/linux/x64/release/bundle/lbpSSH-linux-x64.zip
+      - name: Upload macOS build
         if: matrix.platform == 'macos-latest'
-      - run: flutter build windows --release
+        uses: actions/upload-artifact@v4
+        with:
+          name: macos-build
+          path: build/macos/Build/Products/Release/lbpSSH-macos-universal.zip
+      - name: Upload Windows build
         if: matrix.platform == 'windows-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows-build
+          path: build/windows/lbpSSH-windows-x64.zip
+
+  release:
+    runs-on: ubuntu-latest
+    needs: build
+    if: startsWith(github.ref, 'refs/tags/')
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Download Linux build
+        uses: actions/download-artifact@v4
+        with:
+          name: linux-build
+          path: releases/
+      - name: Download Windows build
+        uses: actions/download-artifact@v4
+        with:
+          name: windows-build
+          path: releases/
+      - name: Download macOS build
+        uses: actions/download-artifact@v4
+        with:
+          name: macos-build
+          path: releases/
+      - name: Get version
+        id: version
+        run: echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ steps.version.outputs.VERSION }}
+          name: Release ${{ steps.version.outputs.VERSION }}
+          draft: false
+          prerelease: false
+          files: |
+            releases/**/*
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Update Homebrew Tap
+        env:
+          VERSION: ${{ steps.version.outputs.VERSION }}
+          HOMEBREW_TAP_REPO: ${{ secrets.HOMEBREW_TAP_REPO }}
+          HOMEBREW_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
+        run: |
+          if [ -z "$HOMEBREW_TAP_REPO" ]; then
+            echo "HOMEBREW_TAP_REPO not set, skipping"
+            exit 0
+          fi
+
+          # Install coreutils for sha256sum
+          sudo apt-get update
+          sudo apt-get install -y coreutils
+
+          # Clone tap repo
+          git clone "https://github.com/$HOMEBREW_TAP_REPO.git" /tmp/homebrew-tap
+          cd /tmp/homebrew-tap
+
+          # Calculate sha256 for macOS zip
+          SHA256=$(sha256sum "$GITHUB_WORKSPACE/releases/lbpSSH-macos-universal.zip" | cut -d' ' -f1)
+
+          # Update cask file
+          perl -i -pe 's/version ".*?"/version "'"$VERSION"'"/' Casks/lbpssh.rb
+          perl -i -pe 's/sha256 ".*?"/sha256 "'"$SHA256"'"/' Casks/lbpssh.rb
+          perl -i -pe 's/sha256 :no_check/sha256 "'"$SHA256"'"/' Casks/lbpssh.rb
+
+          # Commit and push
+          git config user.name "GitHub Actions"
+          git config user.email "actions@github.com"
+          git add Casks/lbpssh.rb
+          git commit -m "Update lbpssh to $VERSION"
+          git push "https://$HOMEBREW_TOKEN@github.com/$HOMEBREW_TAP_REPO.git"