Initial commit - Rentall App

- Full-stack rental marketplace application
- React frontend with TypeScript
- Node.js/Express backend with JWT authentication
- Features: item listings, rental requests, calendar availability, user profiles

backend/models/index.js

@@ -0,0 +1,22 @@
+const sequelize = require('../config/database');
+const User = require('./User');
+const Item = require('./Item');
+const Rental = require('./Rental');
+
+User.hasMany(Item, { as: 'ownedItems', foreignKey: 'ownerId' });
+Item.belongsTo(User, { as: 'owner', foreignKey: 'ownerId' });
+
+User.hasMany(Rental, { as: 'rentalsAsRenter', foreignKey: 'renterId' });
+User.hasMany(Rental, { as: 'rentalsAsOwner', foreignKey: 'ownerId' });
+
+Item.hasMany(Rental, { as: 'rentals', foreignKey: 'itemId' });
+Rental.belongsTo(Item, { as: 'item', foreignKey: 'itemId' });
+Rental.belongsTo(User, { as: 'renter', foreignKey: 'renterId' });
+Rental.belongsTo(User, { as: 'owner', foreignKey: 'ownerId' });
+
+module.exports = {
+  sequelize,
+  User,
+  Item,
+  Rental
+};