refactor: change kiosk parameter from Option<bool> to bool

Simplifies the setup API by making kiosk mandatory at the protocol level,
with platform-specific filtering applied at the database layer.

sdk/base/lib/osBindings/AttachParams.ts

@@ -4,5 +4,5 @@ import type { EncryptedWire } from './EncryptedWire'
 export type AttachParams = {
   password: EncryptedWire | null
   guid: string
-  kiosk?: boolean
+  kiosk: boolean
 }

sdk/base/lib/osBindings/SetupExecuteParams.ts

@@ -6,7 +6,7 @@ export type SetupExecuteParams = {
   guid: string
   password: EncryptedWire | null
   recoverySource: RecoverySource<EncryptedWire> | null
-  kiosk?: boolean
+  kiosk: boolean
   name: string | null
   hostname: string | null
 }