feat: add user last seen field

database/migrations/1728257868871_update_user_last_seens_table.ts

@@ -0,0 +1,15 @@
+import { BaseSchema } from '@adonisjs/lucid/schema';
+
+export default class extends BaseSchema {
+	protected tableName = 'users';
+
+	async up() {
+		this.schema.alterTable(this.tableName, (table) => {
+			table.timestamp('last_seen_at');
+		});
+	}
+
+	async down() {
+		this.schema.dropTable(this.tableName);
+	}
+}