Trial: release/live pull request validation

.github/workflows/pr-validation.yml

@@ -0,0 +1,55 @@
+name: pr-validation
+
+on:
+  pull_request:
+    branches:
+      - release/live
+    types: [opened, synchronize, reopened]
+
+permissions:
+  contents: read
+
+concurrency:
+  group: pr-validation-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    name: lint
+    runs-on: ubuntu-24.04
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20.20.2
+
+      - name: Install dependencies
+        run: npm ci --ignore-scripts
+
+      - name: Lint
+        run: npm run lint
+
+  test:
+    name: test
+    runs-on: ubuntu-24.04
+    timeout-minutes: 45
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20.20.2
+
+      - name: Install dependencies
+        run: npm ci --ignore-scripts
+
+      - name: Prepare local test inputs
+        run: |
+          set -euo pipefail
+          test -f projects/v3/src/environments/environment.ts || cp projects/v3/src/environments/environment.local.ts projects/v3/src/environments/environment.ts
+          npm run prebuildv3
+
+      - name: Unit tests
+        run: npm test