ci: add validation and release workflows

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: Engine CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 11.19.0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: pnpm
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm verify
+      - name: Verify committed Git distribution
+        run: git diff --exit-code -- dist-cli
+      - run: pnpm exec playwright install --with-deps chromium
+      - run: pnpm test:e2e

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+name: Publish engine packages
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: read
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 11.19.0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: pnpm
+          registry-url: https://registry.npmjs.org
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm verify
+      - name: Verify committed Git distribution
+        run: git diff --exit-code -- dist-cli
+      - name: Publish theme
+        run: pnpm --dir packages/slidev-theme-easy-jyy publish --no-git-checks
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+      - name: Publish CLI
+        run: pnpm publish --no-git-checks
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}