Freestyle E2E tests on GH Actions

.github/workflows/e2e-api-tests.yaml

@@ -13,6 +13,7 @@ concurrency:
 
 jobs:
   build:
+    name: E2E Tests (Node ${{ matrix.node-version }}, Freestyle ${{ matrix.freestyle-mode }})
     runs-on: ubicloud-standard-8
     env:
       NODE_ENV: test
@@ -22,6 +23,7 @@ jobs:
     strategy:
       matrix:
         node-version: [22.x]
+        freestyle-mode: [mock, prod]
 
     steps:
       - uses: actions/checkout@v6
@@ -52,6 +54,11 @@ jobs:
       - name: Create .env.test.local file for apps/backend
         run: cp apps/backend/.env.development apps/backend/.env.test.local
 
+      - name: Override Freestyle API key for prod mode
+        if: matrix.freestyle-mode == 'prod'
+        run: |
+          echo "STACK_FREESTYLE_API_KEY=${{ secrets.STACK_FREESTYLE_REAL_API_KEY }}" >> apps/backend/.env.test.local
+
       - name: Create .env.test.local file for apps/dashboard
         run: cp apps/dashboard/.env.development apps/dashboard/.env.test.local