OCPBUGS-105789: Recover expired Playwright sessions via auto re-login

[rhamilto]

Analysis / Root cause:

The Playwright e2e suite authenticates exactly once, in the setup projects (admin-auth.setup.ts, developer-auth.setup.ts), and freezes the session into a storageState snapshot. Every test project loads that static snapshot (playwright.config.ts) and nothing ever re-authenticates — performLogin is only referenced by the two setup files.

When the OpenShift OAuth token expires during a long run, subsequent page.goto() calls silently redirect to the login page, and tests hang waiting for elements (e.g. user-dropdown-toggle, #page-sidebar) that never appear, failing with generic toBeVisible/test-timeout errors. This showed up as widespread login-page hangs in CI.

Jira: https://redhat.atlassian.net/browse/OCPBUGS-105789

Solution description:

Add a self-healing auth fixture that overrides Playwright's built-in page fixture:

• e2e/fixtures/auth-fixture.ts (new) — attaches a main-frame framenavigated listener that detects when a navigation lands on the login page and transparently re-runs performLogin for the active persona, then re-saves storageState so later tests reuse the fresh session. Re-entrancy is guarded via a WeakMap so the login flow's own navigations don't recurse, and it logs a warning when recovery fires so future occurrences are visible in CI logs.
• e2e/setup/login-helper.ts — adds isOnLoginPage() and resolveCredentialsForStorageState() (dispatches to the existing getAdminCredentials()/getDeveloperCredentials() helpers based on the project's storage-state filename).
• e2e/fixtures/index.ts — wires recovery into the shared page fixture. Since every spec imports test from here, coverage is suite-wide with no per-test changes.

Auth-disabled clusters and unset developer credentials cause recovery to no-op safely.

Note: This PR is based on OCPBUGS-105609 (not yet merged) because that branch refactors the same setup/login helpers. It targets the OCPBUGS-105609 branch so the diff shows only this change; it will be retargeted to main once OCPBUGS-105609 merges.

Screenshots / screen recording:

Test setup:

Requires a cluster whose OAuth access-token lifetime is shorter than the full e2e run so the session expires mid-run; the recovery path then re-authenticates transparently.

Test cases:

• Full Playwright e2e run outlasting the OAuth token: post-expiry tests recover instead of hanging on the login page.
• Admin and developer personas each re-authenticate with the correct credentials.
• Auth-disabled cluster: recovery no-ops, tests unaffected.
• Unset developer credentials: recovery no-ops without error.

Browser conformance:

• Chrome

Additional info:

Test-infrastructure only — no product/runtime code changes.

Reviewers and assignees:

🤖 Generated with Claude Code

[rhamilto]

/hold for openshift#16953 to merge first

[rhamilto]

Wrong base — reopening against openshift/console:main.