feat: お知らせの確認待機時間・優先順位機能

b7fd6bf33a835fd73c2a86eb007074d3680f6efd によるリワーク

This reverts commit eeef3965b7
This reverts commit 04fefb2056
This reverts commit 576251200f

packages/backend/src/models/json-schema/announcement.ts

@@ -50,6 +50,14 @@ export const packedAnnouncementSchema = {
 			type: 'boolean',
 			optional: false, nullable: false,
 		},
+		closeDuration: {
+			type: 'number',
+			optional: false, nullable: false,
+		},
+		displayOrder: {
+			type: 'number',
+			optional: false, nullable: false,
+		},
 		isRead: {
 			type: 'boolean',
 			optional: true, nullable: false,