Add macOS arm64 Gitea workflow

.gitea/workflows/qt-macos-arm64.yml

@@ -0,0 +1,62 @@
+name: qt-macos-arm64
+
+on:
+  push:
+    branches: [ main ]
+    tags: [ 'v*' ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  qt-macos-arm64:
+    runs-on: macos-arm64
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Prepare PATH
+        run: |
+          echo "/opt/homebrew/bin" >> "$GITHUB_PATH"
+          echo "/opt/homebrew/opt/qt/bin" >> "$GITHUB_PATH"
+
+      - name: Verify toolchain
+        run: |
+          set -euo pipefail
+          cmake --version | head -n1
+          qmake --version | head -n2
+          which macdeployqt
+          xcode-select -p
+
+      - name: Configure + build app bundle
+        run: |
+          set -euo pipefail
+          rm -rf build-out artifacts
+          cmake -S . -B build-out -G Ninja -DCMAKE_BUILD_TYPE=Release
+          cmake --build build-out --parallel "$(sysctl -n hw.ncpu)"
+
+      - name: Deploy Qt app bundle
+        run: |
+          set -euo pipefail
+          app_path="$(find build-out -maxdepth 2 -type d -name 'qt_tray_demo.app' | head -n1 || true)"
+          [ -n "$app_path" ] || { echo 'No Qt .app bundle produced'; exit 1; }
+          macdeployqt "$app_path"
+
+      - name: Pack artifact and copy to Desktop
+        run: |
+          set -euo pipefail
+          mkdir -p artifacts "$HOME/Desktop"
+          app_path="$(find build-out -maxdepth 2 -type d -name 'qt_tray_demo.app' | head -n1 || true)"
+          [ -n "$app_path" ] || { echo 'No deployed Qt .app bundle found'; exit 1; }
+          out="qt_tray_demo-macos-arm64-run${{ github.run_number }}.zip"
+          ditto -c -k --sequesterRsrc --keepParent "$app_path" "artifacts/$out"
+          cp "artifacts/$out" "$HOME/Desktop/$out"
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: qt_tray_demo-macos-arm64-run${{ github.run_number }}
+          path: artifacts/
+          retention-days: 14