se agrega modelo de asistencias, correcciones de codigo qr y procesador de unsubscribes

app/Http/Controllers/UnsubscribeController.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\User;
+use Illuminate\Http\Request;
+
+class UnsubscribeController extends Controller
+{
+    public function handle(Request $request)
+    {
+        $token = $request->token;
+
+        $user = User::where('unsubscribe_token', $token)->first();
+
+        if ($user) {
+            $user->subscribed = false;
+            $user->save();
+        }
+
+        return response('Unsubscribed', 200);
+    }
+}