refactor(backend): update directory structure for models

packages/backend/src/models/PromoNote.ts

@@ -0,0 +1,33 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { PrimaryColumn, Entity, Index, JoinColumn, Column, OneToOne } from 'typeorm';
+import { id } from './util/id.js';
+import { MiNote } from './Note.js';
+import type { MiUser } from './User.js';
+
+@Entity('promo_note')
+export class MiPromoNote {
+	@PrimaryColumn(id())
+	public noteId: MiNote['id'];
+
+	@OneToOne(type => MiNote, {
+		onDelete: 'CASCADE',
+	})
+	@JoinColumn()
+	public note: MiNote | null;
+
+	@Column('timestamp with time zone')
+	public expiresAt: Date;
+
+	//#region Denormalized fields
+	@Index()
+	@Column({
+		...id(),
+		comment: '[Denormalized]',
+	})
+	public userId: MiUser['id'];
+	//#endregion
+}