Add/update inital try of order components and add csv update script + update import script

inventory-server/src/app.js

@@ -0,0 +1,35 @@
+const express = require('express');
+const cors = require('cors');
+const mysql = require('mysql2/promise');
+const productsRouter = require('./routes/products');
+const dashboardRouter = require('./routes/dashboard');
+const ordersRouter = require('./routes/orders');
+
+const app = express();
+
+app.use(cors());
+app.use(express.json());
+
+// Database connection
+const pool = mysql.createPool({
+  host: 'localhost',
+  user: 'root',
+  password: '',
+  database: 'inventory',
+  waitForConnections: true,
+  connectionLimit: 10,
+  queueLimit: 0
+});
+
+// Make db pool available in routes
+app.locals.pool = pool;
+
+// Routes
+app.use('/api/products', productsRouter);
+app.use('/api/dashboard', dashboardRouter);
+app.use('/api/orders', ordersRouter);
+
+const PORT = process.env.PORT || 3001;
+app.listen(PORT, () => {
+  console.log(`Server is running on port ${PORT}`);
+});