test(audit-logging): add e2e test for the login action

[a19836]

📖 Technical Design: Audit Logging — Platform-Level Log Forwarding (No UI)
🔗 PoC branch PR: #5221
🎯 Epic: #5241

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Description

End-to-end integration test covering the frontend login:

1. With Playwright
2. Execute a login action
3. Then logout
4. Check if login action was logged in the backend-api's console (console transport must be active)
   Note: Because we don't have yet the audit-log search API, we need to perform this check manually.

Definition of Done

• was login and logout actions logged into console