enhance(backend): DBのコラム設定としてcreatedAtの値を入れるように/お知らせ機能API修正

packages/backend/src/core/NoteCreateService.ts

@@ -382,6 +382,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 	private async insertNote(user: { id: MiUser['id']; host: MiUser['host']; }, data: Option, tags: string[], emojis: string[], mentionedUsers: MinimumUser[]) {
 		const insert = new MiNote({
 			id: this.idService.gen(data.createdAt?.getTime()),
+			createdAt: data.createdAt!,
 			fileIds: data.files ? data.files.map(file => file.id) : [],
 			replyId: data.reply ? data.reply.id : null,
 			renoteId: data.renote ? data.renote.id : null,