The previous setup asserted that the URL after submitting wp-login.php
matches /wp-admin/. On staging.peptiderepo.com, a login_redirect filter
sends successful admin logins to the site homepage instead of wp-admin,
so this assertion failed even on correct credentials — the setup logged
in, the storage state would have been usable, but Playwright treated it
as a credential failure and the storage state was never written.
Replaces the post-submit assertion with two safer checks:
- Wait until URL is no longer wp-login.php (i.e. login was accepted)
- Navigate explicitly to /wp-admin/ and assert we land there with the
admin bar visible
This bug was hidden behind the testDir misalignment (fixed in #1) and
the stale staging admin username GH Secret (rotated 2026-05-14). With
both of those fixed, the third bug surfaced.
Agent-Session: cto peptide-e2e-post-login-redirect-fix
