chore: initial commit of existing codebase

app/Models/Customer.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Customer extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['name', 'contact_person', 'email', 'phone', 'address', 'tax_number', 'credit_limit', 'outstanding_balance', 'is_active'];
+
+    protected $casts = [
+        'credit_limit' => 'decimal:2',
+        'outstanding_balance' => 'decimal:2',
+        'is_active' => 'boolean',
+    ];
+
+    public function salesOrders()
+    {
+        return $this->hasMany(SalesOrder::class);
+    }
+
+    public function salesInvoices()
+    {
+        return $this->hasMany(SalesInvoice::class);
+    }
+
+    public function paymentReceipts()
+    {
+        return $this->hasMany(PaymentReceipt::class);
+    }
+}