feat: 個人宛てお知らせ機能 (#107)

* feat: 個人宛てお知らせ機能

* Remove unused import

* Update packages/backend/src/server/api/endpoints/admin/announcements/create.ts

Co-authored-by: riku6460 <17585784+riku6460@users.noreply.github.com>

* Update packages/frontend/src/pages/announcements.vue

Co-authored-by: riku6460 <17585784+riku6460@users.noreply.github.com>

* Restore breakline

* 一般向けAPIにはuserオブジェクトを提供しない

* fix

* Fix

* Update packages/misskey-js/src/entities.ts

Co-authored-by: riku6460 <17585784+riku6460@users.noreply.github.com>

* Fix

* Update misskey-js.api.md

* Fix lint

* 他のテーブルに合わせて character varying(32) にした

* count クエリを1つにまとめた

* user を pack するようにした

* いろいろ修正

* 個人宛てのお知らせの表示を改善

* Update misskey-js.api.md

* Merge migration scripts

* Fix

* Update packages/backend/migration/1688647797135-userannouncement.js

Co-authored-by: riku6460 <17585784+riku6460@users.noreply.github.com>

* Update packages/backend/src/models/entities/Announcement.ts

Co-authored-by: まっちゃとーにゅ <17376330+u1-liquid@users.noreply.github.com>

* Fix

* Update migration script

---------

Co-authored-by: CyberRex <hspwinx86@gmail.com>
Co-authored-by: まっちゃとーにゅ <17376330+u1-liquid@users.noreply.github.com>

packages/backend/src/models/entities/Announcement.ts

@@ -33,6 +33,19 @@ export class Announcement {
 	})
 	public imageUrl: string | null;
 
+	@Index()
+	@Column('varchar', {
+		...id(),
+		nullable: true,
+	})
+	public userId: string | null;
+
+	@Column('integer', {
+		nullable: false,
+		default: 0,
+	})
+	public closeDuration: number;
+
 	constructor(data: Partial<Announcement>) {
 		if (data == null) return;