ci(workflows): use host-uk/build@dev for releases

- Replace manual Go bootstrap with host-uk/build@dev action
- Add matrix builds for linux/amd64, linux/arm64, darwin/universal, windows/amd64
- Update README URLs from Snider/Core to host-uk/core
- Simplify artifact handling with merge-multiple

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -14,74 +14,31 @@ jobs:
       matrix:
         include:
           - os: ubuntu-latest
-            goos: linux
-            goarch: amd64
-            ext: ""
+            platform: linux/amd64
           - os: ubuntu-latest
-            goos: linux
-            goarch: arm64
-            ext: ""
+            platform: linux/arm64
           - os: macos-latest
-            goos: darwin
-            goarch: amd64
-            ext: ""
-          - os: macos-latest
-            goos: darwin
-            goarch: arm64
-            ext: ""
+            platform: darwin/universal
           - os: windows-latest
-            goos: windows
-            goarch: amd64
-            ext: ".exe"
+            platform: windows/amd64
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
-      - name: Setup Go
-        uses: actions/setup-go@v6
+      - name: Build
+        uses: host-uk/build@v3
         with:
-          go-version: '1.23'
-          cache: true
-
-      - name: Build CLI
-        shell: bash
-        env:
-          GOOS: ${{ matrix.goos }}
-          GOARCH: ${{ matrix.goarch }}
-          CGO_ENABLED: "0"
-        run: |
-          mkdir -p dist
-          go build -ldflags="-s -w -X main.Version=${{ github.ref_name }}" \
-            -o dist/core${{ matrix.ext }} \
-            .
-
-      - name: Create archive (Unix)
-        if: matrix.goos != 'windows'
-        shell: bash
-        run: |
-          cd dist
-          tar -czvf core-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz core
-          rm core
-
-      - name: Create archive (Windows)
-        if: matrix.goos == 'windows'
-        shell: pwsh
-        run: |
-          cd dist
-          Compress-Archive -Path core.exe -DestinationPath core-${{ matrix.goos }}-${{ matrix.goarch }}.zip
-          Remove-Item core.exe
-
-      - name: Upload artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: core-${{ matrix.goos }}-${{ matrix.goarch }}
-          path: dist/core-*
+          build-name: core
+          build-platform: ${{ matrix.platform }}
+          build: true
+          package: true
+          sign: false
 
   release:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Download artifacts
         uses: actions/download-artifact@v7
@@ -98,8 +55,9 @@ jobs:
       - name: Create release
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAG_NAME: ${{ github.ref_name }}
         run: |
-          gh release create ${{ github.ref_name }} \
-            --title "Release ${{ github.ref_name }}" \
+          gh release create "$TAG_NAME" \
+            --title "Release $TAG_NAME" \
             --generate-notes \
             release/*