Node.js SDK: subscriptions.update() rejects trialEnd: 'now'

[stilla]

The backend schema (server/polar/subscription/schemas.py, SubscriptionUpdate.trial_end) types trial_end as FutureDatetime | Literal["now"] | None, but the generated Node.js SDK (@polar-sh/sdk, v0.49.0) only types/validates trialEnd as Date | null | undefined (see SubscriptionUpdateBase$outboundSchema in src/models/components/subscriptionupdatebase.ts).

Calling subscriptions.update() with trialEnd: 'now' fails client-side Zod validation with expected date, received string, even though the API accepts 'now' to end a trial immediately. The only workaround is bypassing the SDK with a raw fetch call.

Likely needs a fix to how the trial_end union is exposed in the OpenAPI spec (or a Speakeasy override) so the generated SDK accepts Date | 'now' | null.

_{Sent by @allison-polar from Polar SDK trialEnd Zod validation bug.}

[NerfedAce]

"I'd like to take a look at this. I'll investigate whether the issue is in the OpenAPI schema or the Speakeasy generation and submit a PR if I find the root cause."