Reseed demo tenants after each SSO login.

Demo Free/Pro/Enterprise accounts wipe and reload sample data on
authorization-code SSO callbacks so every sales walkthrough starts clean.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Auth/SsoLoginController.php

@@ -124,6 +124,8 @@ class SsoLoginController extends Controller
         Auth::login($user, remember: true);
         $request->session()->regenerate();
 
+        app(\App\Services\Pos\DemoLoginReseeder::class)->maybeResetAfterLogin($user);
+
         return $this->finishCallback($request, $intended, null, $popup);
     }