disable e2e tests as well since we don't have any real tests there yet

Author: YashK2005

.github/workflows/backend-ci.yml

@@ -114,6 +114,7 @@ jobs:
         path: backend/security-report.json
 
   e2e-tests:
+    if: ${{ false }}  # Temporarily disabled until real E2E tests exist
     runs-on: ubuntu-latest
     needs: test
     env: