Widen order/TWAP status enums (OrderProcessingStatus, twapHistory, FrontendOpenOrder) #100

Problem

Several status enums are narrower than the current API (upstream nktkas#175, #179):

• OrderProcessingStatus is missing "outcomeSettledCanceled", "internalCancel", "tooManyOpenOrdersRejected" — affects src/api/info/_methods/orderStatus.ts, historicalOrders.ts, src/api/info/_methods/_base/_schemas.ts:345-379, and src/api/subscription/_methods/orderUpdates.ts.
• twapHistory status (src/api/info/_methods/twapHistory.ts:43) is missing "waitingForTrigger" and "stopped".
• TwapState.trigger is typed unknown (_schemas.ts:245) — now settable via the new twapOrder.details param; establish the real shape from the upstream schema.
• FrontendOpenOrder.orderType (_schemas.ts:161) is missing "Twap Slice", "Vault Close", "Spot Dust Conversion".

Impact: valibot parsing will reject valid responses carrying the new statuses.

Fix

Widen the unions, type TwapState.trigger, add tests for the new variants.