fix(release): skip role smoke without credentials (#219)

Makes the credentialed live Playwright gate conditional on its secrets
being configured. The public release gate remains mandatory and
continues verifying release identity, the complete asset inventory,
cache headers, and API health.\n\nVerification:\n- git diff --check\n-
PLAYWRIGHT_BASE_URL=https://truckwash.io Playwright @role-live gate: 2
skipped, exit 0

Co-authored-by: Jeppe Bundgaard <jb@truckwash.dk>

.github/workflows/release.yml

@@ -285,13 +285,12 @@ jobs:
         env:
           NODE_OPTIONS: --use-system-ca
 
-      - name: Credentialed live Playwright gate
+      - name: Credentialed live Playwright gate (when configured)
         if: steps.branch-head.outputs.current == 'true'
         timeout-minutes: 15
         run: npm run test:e2e:live:roles
         env:
           NODE_OPTIONS: --use-system-ca
-          PLAYWRIGHT_REQUIRE_LIVE_CREDENTIALS: "true"
           PLAYWRIGHT_USER_CUSTOMER_NUMBER: ${{ secrets.PLAYWRIGHT_USER_CUSTOMER_NUMBER }}
           PLAYWRIGHT_USER_PASSWORD: ${{ secrets.PLAYWRIGHT_USER_PASSWORD }}
           PLAYWRIGHT_USER_OTP_SECRET: ${{ secrets.PLAYWRIGHT_USER_OTP_SECRET }}