add enjoy app

enjoy/src/main/db/create-migration.mjs

@@ -0,0 +1,27 @@
+#!/usr/bin/env zx
+
+const name = process.argv[3];
+const filename = path.resolve(
+  __dirname,
+  "migrations",
+  `${Date.now()}-${process.argv[3]}.js`
+);
+
+const template = `
+const { DataTypes } = require("sequelize");
+
+async function up({ context: queryInterface }) {
+  // code here
+}
+
+async function down({ context: queryInterface }) {
+  // code here
+}
+
+module.exports = { up, down };
+`;
+
+await fs.mkdir(path.resolve(__dirname, "migrations"), { recursive: true });
+await fs.writeFile(filename, template.trim());
+
+console.log(chalk.green(`Created migration ${name} at ${filename}`));