Add optional Laravel Boost AI artifact ignores during boost:install

src/Console/InstallCommand.php

@@ -88,6 +88,7 @@ public function handle(): int
         $this->discoverEnvironment();
         $this->collectInstallationPreferences();
         $this->performInstallation();
+        $this->displayGitignoreSuggestions();
         $this->outro();
 
         return self::SUCCESS;
@@ -140,6 +141,18 @@ protected function performInstallation(): void
         $this->storeConfig();
     }
 
+    protected function displayGitignoreSuggestions(): void
+    {
+        if (! $this->input->isInteractive()) {
+            return;
+        }
+
+        $this->newLine();
+        $this->info('Suggested .gitignore entry for Boost:');
+        $this->line('# Laravel Boost');
+        $this->line('boost.json');
+    }
+
     protected function outro(): void
     {
         $url = 'https://laravel.com/docs/boost';

tests/Feature/Console/InstallCommandGitignoreTest.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+use Laravel\Boost\Console\Enums\Theme;
+use Laravel\Boost\Console\InstallCommand;
+use Laravel\Boost\Install\AgentsDetector;
+use Laravel\Boost\Install\Cloud;
+use Laravel\Boost\Install\Nightwatch;
+use Laravel\Boost\Install\Sail;
+use Laravel\Boost\Support\Config;
+use Laravel\Prompts\Terminal;
+
+beforeEach(function (): void {
+    $this->app->instance(InstallCommand::class, new class(app(AgentsDetector::class), app(Cloud::class), app(Config::class), app(Nightwatch::class), app(Sail::class), app(Terminal::class)) extends InstallCommand
+    {
+        protected function displayBoostHeader(string $featureName, string $projectName, ?Theme $theme = null): void {}
+
+        protected function discoverEnvironment(): void {}
+
+        protected function collectInstallationPreferences(): void {}
+
+        protected function performInstallation(): void {}
+
+        protected function outro(): void {}
+    });
+});
+
+it('shows suggested gitignore entries in interactive installs', function (): void {
+    $this->artisan('boost:install')
+        ->expectsOutputToContain('Suggested .gitignore entry for Boost:')
+        ->expectsOutputToContain('# Laravel Boost')
+        ->expectsOutputToContain('boost.json')
+        ->assertSuccessful();
+});
+
+it('does not show suggested gitignore entries in non-interactive installs', function (): void {
+    $this->artisan('boost:install', ['--no-interaction' => true])
+        ->doesntExpectOutputToContain('Suggested .gitignore entry for Boost:')
+        ->doesntExpectOutputToContain('boost.json')
+        ->assertSuccessful();
+});