feat: チャンネルの削除

Resolve #7171
Resolve #9935

packages/backend/src/server/api/endpoints/channels/owned.ts

@@ -45,6 +45,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const query = this.queryService.makePaginationQuery(this.channelsRepository.createQueryBuilder(), ps.sinceId, ps.untilId)
+				.andWhere('channel.isArchived = FALSE')
 				.andWhere({ userId: me.id });
 
 			const channels = await query