fix: invitation

app/Models/TeamInvitation.php

@@ -19,4 +19,13 @@ class TeamInvitation extends Model
     {
         return $this->belongsTo(Team::class);
     }
+    public function isValid() {
+        $createdAt = $this->created_at;
+        $diff = $createdAt->diffInMinutes(now());
+        if ($diff <= config('constants.invitation.link.expiration')) {
+            return true;
+        } else {
+            $this->delete();
+        }
+    }
 }