feat: actor-based multi-session authentication

[techmahedy]

Introduces actor-based authentication to support multiple independent session contexts (e.g. web, admin) within the same application.

---

Login

Before

Auth::try($request->passed());

After

auth('admin')->try($request->passed());
Auth::actor('admin')->try($request->passed());

---

Fetch authenticated user

Before

Auth::user();
auth()->user();

After

auth('admin')->user();
Auth::actor('admin')->user();
auth('admin')->user()->name;
Auth::actor('admin')->user()->name;

---

config/auth.php

Before

return [
    'model' => App\Models\User::class,
];

After

return [
    'default' => 'web',

    'actors' => [
        'web' => [
            'model'       => App\Models\User::class,
            'session_key' => 'user',
        ],
        'admin' => [
            'model'       => App\Models\Admin::class,
            'session_key' => 'admin',
        ],
    ],
];

---

Authenticate middleware

Before

if (Auth::check()) {
    return $next($request);
}

After

foreach (config('auth.actors') as $actor => $_) {
    if (Auth::actor($actor)->check()) {
        return $next($request);
    }
}

---

GuestMiddleware

Before

if (Auth::check()) {
    return redirect('/home');
}

After

foreach (config('auth.actors') as $actor => $_) {
    if (Auth::actor($actor)->check()) {
        return redirect('/home');
    }
}

[techmahedy]

@rrr63 hope you will check it carefully, before checking, update middleware and config as described, from my end, it is good to go.