feat(workflow): add CI

.github/workflows/ci.yml

@@ -0,0 +1,62 @@
+name: CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+
+# Cancel in-progress runs for the same branch/PR when new commits land.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  format:
+    name: clang-format
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install clang-format
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends clang-format
+
+      - name: Check formatting
+        run: |
+          mapfile -d '' files < <(find src \( -name '*.cpp' -o -name '*.h' \) -print0)
+          clang-format --dry-run -Werror "${files[@]}"
+
+  build:
+    name: Build (${{ matrix.buildtype }})
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: false
+      matrix:
+        buildtype: [debug, release]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            meson ninja-build g++ pkg-config \
+            libwayland-dev wayland-protocols \
+            libegl-dev libgles-dev \
+            libfreetype-dev libharfbuzz-dev libfontconfig-dev \
+            libcairo2-dev libpango1.0-dev \
+            libxkbcommon-dev \
+            libsdbus-c++-dev libpipewire-0.3-dev \
+            libpam0g-dev libcurl4-openssl-dev libwebp-dev
+
+      - name: Configure
+        run: |
+          args=(--buildtype=${{ matrix.buildtype }})
+          if [ "${{ matrix.buildtype }}" = "release" ]; then
+            args+=(-Db_lto=true)
+          fi
+          meson setup build-${{ matrix.buildtype }} "${args[@]}"
+
+      - name: Build
+        run: meson compile -C build-${{ matrix.buildtype }}