Phase1 CLI: Streamline onboarding journey. Complete if pre-requirements are met.

[waleedhammam]

This iteration aims streamlined the onboarding process: Mary does not have WGE onboarding workflows knowledge and does not need to successfully achieve installing WGE app.

However, in this iteration, we set as contract, that WGE onboarding pre-requirements are met, otherwise the journeys wont start:

• kube management cluster
• entitlements file created in cluster
• flux bootstrapped in cluster

Outcomes:

• Mary can authenticate via admin user (wego-admin) but not OIDC. Admin user has admin role. no other RBAC resources are created.
• Mary can see flux runtime for management cluster via the dashboard.
• Mary can see flux system gitrepository and kustomization and source in ready state.
• No other platform admins can login as OIDC login is not ready. wego-admin is an emergency user.
• Wego-admin user could run platform applications (grafana) in management cluster but not in leaf clusters

[waleedhammam]

Follow up: #3405