Add CI workflow and Dependabot automation

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: axemclion

.github/dependabot.yml

@@ -0,0 +1,16 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    target-branch: "master"
+    groups:
+      dev-dependencies:
+        patterns:
+          - "*"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    target-branch: "master"

.github/workflows/ci.yml

@@ -0,0 +1,17 @@
+name: CI
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: 'npm'
+      - run: npm install
+      - run: npm test

.github/workflows/dependabot-automerge.yml

@@ -0,0 +1,20 @@
+name: Dependabot auto-merge
+on: pull_request
+permissions:
+  contents: write
+  pull-requests: write
+jobs:
+  auto-merge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: Fetch Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v2
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+      - name: Enable auto-merge
+        run: gh pr merge --auto --squash "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/dependabot-gate.yml

@@ -0,0 +1,13 @@
+name: Dependabot gate
+on: pull_request
+jobs:
+  dependabot-only:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Block non-Dependabot PRs
+        run: |
+          if [ "${{ github.actor }}" != "dependabot[bot]" ]; then
+            echo "This repository only accepts PRs from Dependabot."
+            exit 1
+          fi
+          echo "PR is from Dependabot, allowed."

package.json

@@ -6,7 +6,8 @@
   "scripts": {
     "build-demo": "webpack --config test/webpack.config.js",
     "demo": "webpack-dev-server --config test/webpack.config.js",
-    "perf": "node test/perf.js"
+    "perf": "node test/perf.js",
+    "test": "npm run build-demo"
   },
   "author": "Parashuram <code@nparashuram.com>",
   "license": "BSD-3-Clause",