started dockerfiles and itemrequest

backend/models/ItemRequestResponse.js

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+const { DataTypes } = require('sequelize');
+const sequelize = require('../config/database');
+
+const ItemRequestResponse = sequelize.define('ItemRequestResponse', {
+  id: {
+    type: DataTypes.UUID,
+    defaultValue: DataTypes.UUIDV4,
+    primaryKey: true
+  },
+  itemRequestId: {
+    type: DataTypes.UUID,
+    allowNull: false,
+    references: {
+      model: 'ItemRequests',
+      key: 'id'
+    }
+  },
+  responderId: {
+    type: DataTypes.UUID,
+    allowNull: false,
+    references: {
+      model: 'Users',
+      key: 'id'
+    }
+  },
+  message: {
+    type: DataTypes.TEXT,
+    allowNull: false
+  },
+  offerPricePerHour: {
+    type: DataTypes.DECIMAL(10, 2)
+  },
+  offerPricePerDay: {
+    type: DataTypes.DECIMAL(10, 2)
+  },
+  availableStartDate: {
+    type: DataTypes.DATE
+  },
+  availableEndDate: {
+    type: DataTypes.DATE
+  },
+  existingItemId: {
+    type: DataTypes.UUID,
+    allowNull: true,
+    references: {
+      model: 'Items',
+      key: 'id'
+    }
+  },
+  status: {
+    type: DataTypes.ENUM('pending', 'accepted', 'declined', 'expired'),
+    defaultValue: 'pending'
+  },
+  contactInfo: {
+    type: DataTypes.STRING
+  }
+});
+
+module.exports = ItemRequestResponse;