Feat: UGCの公開範囲設定機能 (#15938)

* wip

* Update CHANGELOG.md

* wip

* wip

* Update show.ts

packages/backend/src/models/Meta.ts

@@ -659,6 +659,12 @@ export class MiMeta {
 	})
 	public federationHosts: string[];
 
+	@Column('varchar', {
+		length: 128,
+		default: 'local',
+	})
+	public ugcVisibilityForVisitor: 'all' | 'local' | 'none';
+
 	@Column('varchar', {
 		length: 64,
 		nullable: true,