add workflow

.gitea/workflows/build-on-tag.yml

@@ -0,0 +1,41 @@
+name: Build ESLint Config on Tag
+
+on:
+  push:
+    tags:
+      - 'v*'   # triggers on tags like v1.0.0, v2.3.1, etc.
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Verify dist
+        run: |
+          if [ ! -d "dist" ]; then
+            echo "Build failed: dist/ directory not found"
+            exit 1
+          fi
+
+      # 6️⃣ Optional: Archive dist as artifact
+      # Uncomment if you want to attach build output to the workflow run
+      # - name: Archive build
+      #   uses: actions/upload-artifact@v3
+      #   with:
+      #     name: eslint-config-dist
+      #     path: dist