GitHub Actions workflow for automated testing

.github/workflows/tests.yml

@@ -0,0 +1,41 @@
+name: CI Tests
+
+on:
+  push:
+    branches: [ main, development, testing ]
+  pull_request:
+    branches: [ main, development, testing ]
+
+jobs:
+  backend-tests:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Install backend deps
+        working-directory: backend
+        run: npm ci
+
+      - name: Run backend unit tests
+        working-directory: backend
+        run: npm run test
+
+      - name: Run backend e2e tests
+        working-directory: backend
+        env:
+          SUPABASE_URL: ${{ secrets.SUPABASE_URL }}
+          SUPABASE_SERVICE_ROLE_KEY: ${{ secrets.SUPABASE_SERVICE_ROLE_KEY }}
+          SUPABASE_ANON_KEY: ${{ secrets.SUPABASE_ANON_KEY }}
+        run: |
+          printf 'SUPABASE_URL=%s\n' "$SUPABASE_URL" > .env.local
+          printf 'SUPABASE_SERVICE_ROLE_KEY=%s\n' "$SUPABASE_SERVICE_ROLE_KEY" >> .env.local
+          printf 'SUPABASE_ANON_KEY=%s\n' "$SUPABASE_ANON_KEY" >> .env.local
+          printf 'PORT=3000\n' >> .env.local
+          npm run test:e2e