types(core): use result types instead of direct types (#11140)

* types(core): use result types instead of direct types

fix: import pains

chore: apply suggestion from review

Co-authored-by: Almeida <github@almeidx.dev>

chore: fmt script

chore: requested change

* chore: rename script, fix build

* chore: types

---------

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/core/src/api/channel.ts

@@ -3,7 +3,6 @@
 import { makeURLSearchParams, type RawFile, type RequestData, type REST } from '@discordjs/rest';
 import {
 	Routes,
-	type APIThreadChannel,
 	type RESTDeleteAPIChannelResult,
 	type RESTGetAPIChannelInvitesResult,
 	type RESTGetAPIChannelMessageReactionUsersQuery,
@@ -490,7 +489,7 @@ export class ChannelsAPI {
 			body,
 			reason,
 			signal,
-		}) as Promise<APIThreadChannel>;
+		}) as Promise<RESTPostAPIChannelThreadsResult>;
 	}
 
 	/**