fix: include mcp feature flag in InertiaSharedDataTest shared-props assertion

The shared 'features' prop now carries the mcp flag, so the exact-match
assertion for guests must include 'mcp' => false.

tests/Feature/InertiaSharedDataTest.php

@@ -99,6 +99,7 @@ test('shared feature flags do not include coinbase flag', function () {
     expect($props['features'])->toBe([
         'cashflow' => true,
         'calculateBalancesOnImport' => false,
+        'mcp' => false,
     ]);
 });