chore: add basicmerge workflow

.github/workflows/merge.yml

@@ -0,0 +1,21 @@
+name: After merge
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Lint, test and build client
+        run: yarn lint && yarn test && yarn build
+
+      - name: Run end-to-end tests
+        run: yarn e2e

client/package.json

@@ -10,7 +10,7 @@
     "lint:js": "jshint --verbose Gruntfile.js src/**/*.js test/**/*.js",
     "lint:css": "csslint src/**/*.css",
     "lint": "yarn lint:js && yarn lint:css",
-    "build": "yarn lint && ./build.sh",
+    "build": "./build.sh",
     "test": "mocha -r module-alias/register -r jsdom-global/register -r ./mocha_inject test/**/*.test.js"
   },
   "devDependencies": {