Add linting action.

Author: BigBlueHat

.github/workflows/lint.yaml

@@ -0,0 +1,25 @@
+name: Lint
+
+permissions:
+  contents: read
+
+on: [push]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    strategy:
+      matrix:
+        node-version: [24.x]
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - name: Run eslint
+      run: npm run lint