Completes the hasWildcard -> isPattern rename in oc-path (exports the
canonical predicate, migrates all callers, deletes the deprecated alias)
and removes the retired buildOpenAICodexProvider catalog module with its
api.ts re-export and contract-list entries. The dead-option-flag half of
this branch converged with an equivalent change that landed on main first.
Refactor OpenAI provider identity so OpenAI remains the canonical provider for API-key and OAuth-backed flows while legacy openai-codex state is doctor/migration-only.
Keeps OpenAI Codex Responses as an API/transport class rather than a provider identity, moves auth aliases through providerAuthAliases, updates doctor repair sequencing for old auth/profile state, and refreshes tests/docs around the canonical OpenAI behavior.
Peter Steinberger