Add CI for web

.github/workflows/ci-web.yml

@@ -0,0 +1,36 @@
+name: CI - Web
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macOS-latest, ubuntu-latest, windows-latest]
+        python-version: ["3.9"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install -U pip install wheel setuptools cffi
+      - name: Build the web interface first
+        run: |
+          cd helics_web
+          pip install .
+      - name: Download helics library and run pip install
+        run: |
+          python setup.py download
+          python setup.py build_ext
+          pip install -e ".[cli]"
+      - name: Run CLI
+        run: |
+          helics server &
+          sleep 5
+          kill %+