Structuring the SQL JSON data type and adding new key values to the output using an api resource?

I'm trying to add a label that is matched to an array on my records model and an is_picked: false to the json emotions collection in an API resource:

** Example Current Output**

"data":[
   {
      "id":91,
      "title":"Temporibus sed ut voluptas nesciunt.",
      "emotions":[
         {
            "intensity":10,
            "emotion_id":1,
            "newIntensity":3
         },
         {
            "intensity":10,
            "emotion_id":2,
            "newIntensity":3
         }
      ]
   },
   {
      "id":92,
      "title":"Facilis provident qui tempore sit illum fuga incidunt odio.",
      "emotions":[
         {
            "intensity":10,
            "emotion_id":1,
            "newIntensity":3
         },
         {
            "intensity":10,
            "emotion_id":2,
            "newIntensity":3
         }
      ]
   }
]

Desired Output Example

"data":[
   {
      "id":91,
      "title":"Temporibus sed ut voluptas nesciunt.",
      "emotions":[
         {
            "intensity":10,
            "emotion_id":1,
            "newIntensity":3
            "label": "Happy",
            "is_picked": false
         },
         {
            "intensity":10,
            "emotion_id":2,
            "newIntensity":3
            "label": "Sad",
            "is_picked": false
         }
      ]
   },
   {
      "id":92,
      "title":"Facilis provident qui tempore sit illum fuga incidunt odio.",
      "emotions":[
         {
            "intensity":10,
            "emotion_id":1,
            "newIntensity":3
            "label": "Happy",
            "is_picked": false
         },
         {
            "intensity":10,
            "emotion_id":2,
            "newIntensity":3
            "label": "Sad",
            "is_picked": false
         }
      ]
   }
]

My Record Table

Schema::create('records', function (Blueprint $table) {
    $table->id();
    $table->text('title')->nullable();
    $table->json('emotions')->nullable();
    $table->timestamps();
});

Model

class Record extends Model
{
    use HasFactory;

    protected $casts = [
        'emotions' => 'json',
    ];

    public $emtionsLabels = ['Happy', 'Sad'];
}

I was able to structure the JSON output for the emotions to be closer to the Desired Output Example in the Controller:

class RecordController extends Controller
{
    public function index()
    {

        $emotions = Record::first()->emotions;

        $phpRecords = json_decode($emotions, true);

        $newEmotions;
        $record = new Record();
        $labels = $record->emtionsLabels;
        foreach($phpRecords as $emotion){
            $newEmotions[] = 
                [
                    'intensity' => $emotion['intensity'],
                    'new_intensity' => $emotion['newIntensity'],
                    'emotion_id'=> $emotion['emotion_id'],
                    'label' => $labels[$emotion['emotion_id'] - 1]
		    'is_picked' => false
                ];
        }

        return collect($newEmotions);

    }
}

Now what I'm trying to figure out is how to format that json output in my API RecordResource, or Record model, to be the similar to the code in my controller example:

Current RecordResource

class RecordResource extends JsonResource
{
    public function toArray($request)
    {
        return [
            'id' => $this->id,
            'title' => $this->title,
            'emotions' => $this->emotions
        ];
    }
}