feat: add public entry page for KAN-50

tests/Feature/WelcomeTest.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Inertia\Testing\AssertableInertia as Assert;
+use Symfony\Component\Process\Process;
+use Tests\TestCase;
+
+class WelcomeTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_public_entry_page_is_available_to_guests(): void
+    {
+        $this->get(route('home'))
+            ->assertOk()
+            ->assertInertia(fn (Assert $page) => $page
+                ->component('Welcome')
+                ->where('auth.user', null));
+    }
+
+    public function test_public_entry_page_recognizes_authenticated_users(): void
+    {
+        $user = User::factory()->create();
+
+        $this->actingAs($user)
+            ->get(route('home'))
+            ->assertOk()
+            ->assertInertia(fn (Assert $page) => $page
+                ->component('Welcome')
+                ->where('auth.user.id', $user->id));
+    }
+
+    public function test_public_entry_page_presentation_and_localization(): void
+    {
+        $process = new Process(['node', 'tests/Fixtures/welcome.mjs'], base_path());
+        $process->setTimeout(60);
+        $process->run();
+
+        $this->assertTrue($process->isSuccessful(), $process->getOutput().$process->getErrorOutput());
+        $this->assertStringContainsString('Welcome behavior checks passed.', $process->getOutput());
+    }
+}