add app invite

src/models/AppInvite.js

@@ -0,0 +1,21 @@
+const { DataTypes } = require('sequelize');
+const sequelize = require('../database');
+
+const AppInvite = sequelize.define('AppInvite', {
+    uuid: {
+        type: DataTypes.UUID,
+        allowNull: false,
+        unique: true,
+        primaryKey: true
+    },
+    inviter_npub: {
+        type: DataTypes.STRING,
+        allowNull: false,
+    },
+    created_at: {
+        type: DataTypes.DATE,
+        allowNull: false
+    },
+});
+
+module.exports = AppInvite;