enhance: サーバーごとにモデレーションノートを残せるように

packages/backend/src/models/Instance.ts

@@ -144,4 +144,9 @@ export class MiInstance {
 		nullable: true,
 	})
 	public infoUpdatedAt: Date | null;
+
+	@Column('varchar', {
+		length: 16384, default: '',
+	})
+	public moderationNote: string;
 }

packages/backend/src/models/json-schema/federation-instance.ts

@@ -107,5 +107,9 @@ export const packedFederationInstanceSchema = {
 			optional: false, nullable: true,
 			format: 'date-time',
 		},
+		moderationNote: {
+			type: 'string',
+			optional: true, nullable: true,
+		},
 	},
 } as const;