CI: validate every push and pull request; stars refreshed on main and weekly

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.github/workflows/catalog.yml

@@ -0,0 +1,67 @@
+name: Catalog
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+  schedule:
+    # Mondays, 00:00 UTC.
+    - cron: "0 0 * * 1"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: catalog-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          persist-credentials: false
+      - uses: pnpm/action-setup@v6
+        with:
+          version: 11
+      - uses: actions/setup-node@v7
+        with:
+          node-version: 24
+          cache: pnpm
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm test
+      - run: pnpm validate
+
+  stars:
+    needs: validate
+    if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          ref: main
+      - uses: pnpm/action-setup@v6
+        with:
+          version: 11
+      - uses: actions/setup-node@v7
+        with:
+          node-version: 24
+          cache: pnpm
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm stars
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - run: pnpm validate
+      - name: Commit stars
+        run: |
+          git config user.name 'github-actions[bot]'
+          git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
+          git add apps
+          if ! git diff --cached --quiet; then
+            git commit -m 'Update GitHub stars'
+            git push origin HEAD:main
+          fi