fix/typescript: options of schemas without parameters resolve to Reco…

…rd<string, never> (#77)

The type `Record<string, never>` blanks out all keys when combined with other types via `&`. Type composition ignores the `unknown` type.

src/runtime/openapi.ts

@@ -24,7 +24,7 @@ export type FetchResponseError<T> = NuxtError<
 export type MethodOption<M, P> = 'get' extends keyof P ? { method?: M } : { method: M }
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
-export type ParamsOption<T> = T extends { parameters?: any, query?: any } ? T['parameters'] : Record<string, never>
+export type ParamsOption<T> = T extends { parameters?: any, query?: any } ? T['parameters'] : unknown
 
 export type RequestBodyOption<T> =
   OperationRequestBodyContent<T> extends never