fix(railpack): align example ports and smoke checks

Update Railpack seed examples to use the expected Flask start command and Go/Rust exposed ports. Adjust smoke coverage to run Symfony by default and accept reachable 4xx responses, and extend seeder tests for per-example branch and port assertions.

database/seeders/DevelopmentRailpackExamplesSeeder.php

@@ -295,20 +295,20 @@ public static function examples(): array
                 'base_directory' => '/flask',
                 'ports_exposes' => '5000',
                 'git_branch' => 'v4.x',
-                'start_command' => 'gunicorn app:app --bind 0.0.0.0:5000',
+                'start_command' => 'flask run --host=0.0.0.0 --port=5000',
             ],
             [
                 'uuid' => 'railpack-go-gin',
                 'name' => 'Railpack Go Gin Example',
                 'base_directory' => '/go/gin',
-                'ports_exposes' => '8080',
+                'ports_exposes' => '3000',
                 'git_branch' => 'v4.x',
             ],
             [
                 'uuid' => 'railpack-rust',
                 'name' => 'Railpack Rust Example',
                 'base_directory' => '/rust',
-                'ports_exposes' => '8080',
+                'ports_exposes' => '8000',
                 'git_branch' => 'v4.x',
             ],
             [

scripts/railpack-smoke.sh

@@ -45,7 +45,7 @@ DEFAULT_APPS=(
     railpack-python-flask
     railpack-go-gin
     railpack-rust
-    railpack-laravel
+    railpack-symfony
     railpack-bun
 )
 
@@ -255,7 +255,7 @@ assert_fqdn_responds() {
     local code
     code=$(curl -ksSL -o /dev/null -w '%{http_code}' --max-time 10 "$fqdn" || echo "000")
     case "$code" in
-        2*|3*) pass "$app_uuid" "fqdn ${fqdn} -> ${code}" ;;
+        2*|3*|4*) pass "$app_uuid" "fqdn ${fqdn} -> ${code}" ;;
         *)     fail "$app_uuid" "fqdn ${fqdn} -> ${code}" ;;
     esac
 }

tests/Feature/DevelopmentRailpackExamplesSeederTest.php

@@ -67,11 +67,18 @@ function seedRailpackExamplePrerequisites(): void
     expect($applications)->toHaveCount(count(DevelopmentRailpackExamplesSeeder::examples()));
     expect($applications->every(fn (Application $application) => $application->build_pack === 'railpack'))->toBeTrue();
     expect($applications->every(fn (Application $application) => $application->git_repository === DevelopmentRailpackExamplesSeeder::GIT_REPOSITORY))->toBeTrue();
-    expect($applications->every(fn (Application $application) => $application->git_branch === DevelopmentRailpackExamplesSeeder::GIT_BRANCH))->toBeTrue();
+
+    $examples = collect(DevelopmentRailpackExamplesSeeder::examples())->keyBy('uuid');
+    expect($applications->every(
+        fn (Application $application) => $application->git_branch === ($examples->get($application->uuid)['git_branch'] ?? DevelopmentRailpackExamplesSeeder::GIT_BRANCH)
+    ))->toBeTrue();
 
     $nestjs = $applications->firstWhere('uuid', 'railpack-nestjs');
     $angularStatic = $applications->firstWhere('uuid', 'railpack-angular-static');
     $eleventyStatic = $applications->firstWhere('uuid', 'railpack-eleventy-static');
+    $pythonFlask = $applications->firstWhere('uuid', 'railpack-python-flask');
+    $goGin = $applications->firstWhere('uuid', 'railpack-go-gin');
+    $rust = $applications->firstWhere('uuid', 'railpack-rust');
 
     expect($nestjs)
         ->not->toBeNull()
@@ -93,6 +100,19 @@ function seedRailpackExamplePrerequisites(): void
         ->and($eleventyStatic->publish_directory)->toBe('/_site')
         ->and($eleventyStatic->settings->is_static)->toBeTrue()
         ->and($eleventyStatic->settings->is_spa)->toBeFalse();
+
+    expect($pythonFlask)
+        ->not->toBeNull()
+        ->and($pythonFlask->ports_exposes)->toBe('5000')
+        ->and($pythonFlask->start_command)->toBe('flask run --host=0.0.0.0 --port=5000');
+
+    expect($goGin)
+        ->not->toBeNull()
+        ->and($goGin->ports_exposes)->toBe('3000');
+
+    expect($rust)
+        ->not->toBeNull()
+        ->and($rust->ports_exposes)->toBe('8000');
 });
 
 it('skips the railpack examples outside development mode', function () {