feat: Add GitHub Actions workflows for release and testing automation

.github/workflows/tagged-release.yml

@@ -0,0 +1,39 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+env:
+  TARGET_NAME: "open-browser-time"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ '22.x' }}
+          cache: npm
+
+      - name: Install npm dependencies
+        run: npm install
+
+      - name: Build the extension
+        run: |
+          npm run build
+
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          name: ${{env.TARGET_NAME}}
+          files: |
+            dist

.github/workflows/test.yml

@@ -0,0 +1,28 @@
+name: Run Tests
+on:
+  pull_request:
+    branches:
+      - "*"
+  push:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ '22.x' }}
+          cache: npm
+
+      - name: Install npm dependencies
+        run: npm install
+
+      - name: Run tests
+        run: npx jest