Refactor Filament resources and models; add attribute casting in Group model, update navigation icons, and remove TeacherSeeder in favor of UserTableSeeder.

app/Models/Group.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
@@ -19,6 +20,21 @@ class Group extends Model
 {
     use HasFactory;
 
+    /** 
+     * @var array<string, string>
+     */
+    protected $casts = [
+        'start_date' => 'date',
+        'end_date' => 'date',
+    ];
+
+    public function name(): Attribute
+    {
+        return Attribute::make(
+            get: fn ($value) => $this->start_date->format('d M') . ' - ' . $this->end_date->format('d M'),
+        );
+    }
+
     public function pilgrims(): HasMany
     {
         return $this->hasMany(Pilgrim::class);