Fix healthchecks: install curl in backend and frontend images

backend/models/User.js

@@ -0,0 +1,31 @@
+const { DataTypes } = require('sequelize');
+const { sequelize } = require('../config/database');
+const bcrypt = require('bcryptjs');
+
+const User = sequelize.define('User', {
+  id: {
+    type: DataTypes.INTEGER,
+    primaryKey: true,
+    autoIncrement: true,
+  },
+  email: {
+    type: DataTypes.STRING,
+    unique: true,
+    allowNull: false,
+    validate: { isEmail: true },
+  },
+  password: {
+    type: DataTypes.STRING,
+    allowNull: false,
+  },
+});
+
+User.beforeCreate(async (user) => {
+  user.password = await bcrypt.hash(user.password, 10);
+});
+
+User.prototype.validatePassword = async function (password) {
+  return bcrypt.compare(password, this.password);
+};
+
+module.exports = User;