feat(giftcard): add customer giftcard/mine endpoint; fix admin/app password digit normalization

app/Models/GiftCardCodes.php

@@ -40,4 +40,9 @@ class GiftCardCodes extends Model
         return $this->belongsTo(Customer::class, 'assigned_to', 'id')->select('id', 'name', 'mobile');
     }
 
+    public function giftcard()
+    {
+        return $this->belongsTo(GiftCard::class, 'giftcard_id', 'id');
+    }
+
 }