chore: initial commit of existing codebase

app/Models/Item.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Item extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['item_code', 'item_name', 'category', 'unit_of_measure', 'minimum_stock_level', 'cost_price', 'description', 'is_active'];
+
+    protected $casts = [
+        'minimum_stock_level' => 'decimal:2',
+        'cost_price' => 'decimal:2',
+        'is_active' => 'boolean',
+    ];
+
+    public function stockLevels()
+    {
+        return $this->hasMany(StockLevel::class);
+    }
+
+    public function stockMovements()
+    {
+        return $this->hasMany(StockMovement::class);
+    }
+
+    public function billOfMaterials()
+    {
+        return $this->hasMany(BillOfMaterial::class, 'product_id');
+    }
+
+    public function bomComponents()
+    {
+        return $this->hasMany(BillOfMaterial::class, 'raw_material_id');
+    }
+}