Initial Ladill Care release.

Healthcare management app: patients, appointments, consultations, lab,
pharmacy inventory, billing, and reports at care.ladill.com.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Models/BillLineItem.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\Concerns\BelongsToOwner;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class BillLineItem extends Model
+{
+    use BelongsToOwner;
+
+    protected $table = 'care_bill_line_items';
+
+    protected $fillable = [
+        'owner_ref', 'bill_id', 'type', 'description', 'quantity',
+        'unit_price_minor', 'total_minor', 'source_type', 'source_id',
+    ];
+
+    public function bill(): BelongsTo
+    {
+        return $this->belongsTo(Bill::class, 'bill_id');
+    }
+}