Adds a keycloak_auth_flow role that locally validates flow
definitions (structure, nesting depth, known provider IDs, and a set
of Keycloak authentication-flow gotchas: conditions silently ignored
outside a Conditional subflow, keycloak/keycloak#29515's OTP+WebAuthn
sibling bug, conditional-credential config shape/semantics, and more)
before deploying them idempotently via
middleware_automation.keycloak.keycloak_authentication_v2.
Includes the CCCHH realm's actual "browser passkey and token" flow
(the realm's real browserFlow binding, not the untouched built-in
"browser" flow), exported from the live server so it's now reviewable
and redeployable from this repo instead of only editable in the
Keycloak admin console.
Needed for keycloak_authentication_v2, to manage Keycloak
authentication flows (e.g. the CCCHH browser flow) as YAML.
Chosen over community.general's own copy of the module (deprecated in
favor of this collection, and limited to 4 sub-flow levels there vs.
10 here).