feat: add breath colors

app/Models/BreathingColor.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class BreathingColor extends Model
+{
+    protected $fillable = ['name', 'colors', 'order', 'is_active'];
+
+    protected $casts = [
+        'colors' => 'array',
+        'is_active' => 'boolean',
+        'order' => 'integer',
+    ];
+}