pi-ai resolves an OAuth provider from a stored OAuth credential alone, and
this adapter builds its Models collection with no credential store and runs
no login flow. `openai-codex` — the one installed provider declaring
`auth.oauth` with no `auth.apiKey` — was therefore offered on the Models page
with the keyless placeholder every pi-ai route carries, and every request on
it failed `Provider is not configured` before going out.
`catalogProviderTakesApiKey()` answers whether pi-ai's installed provider for
a route declares the one method this adapter can supply, and the directory
skips the catalog routes that fail it. Catalog membership is unchanged, so
`declared` still answers what pi-ai ships; the profile half of the union stays
unconditional, so a route a settings document already names keeps its entry
and can be edited or deleted.
Resolution is untouched: a profile naming `apiKeyEnv` on such a route still
builds a working provider.
The step and the Models page both asked one question of a join that
describes every provider: is deepseek-official's credential stored? A user
who configured some other route was taken over on every blank session, and
the DeepSeek setup card opened over them on every visit to Models with a
Cancel that could not close it — while clearing the add card's draft,
because it shared the row-editor close handler.
providerUsable(row) now answers what both surfaces need: the route is
registered and whatever credential its profile names is stored. Readiness
(renamed onboardingReadiness) ends on any usable row, needsSetup takes the
same fact, and each card kind owns its own close handler.
Fixes#2325
