chore: initial commit of existing codebase

app/Models/GrnItem.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class GrnItem extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['goods_receipt_note_id', 'purchase_order_item_id', 'item_id', 'quantity_received', 'unit_cost', 'type'];
+
+    protected $casts = [
+        'quantity_received' => 'decimal:2',
+        'unit_cost' => 'decimal:2',
+    ];
+
+    public function goodsReceiptNote()
+    {
+        return $this->belongsTo(GoodsReceiptNote::class);
+    }
+
+    public function purchaseOrderItem()
+    {
+        return $this->belongsTo(PurchaseOrderItem::class);
+    }
+
+    public function item()
+    {
+        return $this->belongsTo(Item::class);
+    }
+}