feat(v5): gate V5 to development environments only

Introduce V5Feature and config so V5 routes, jobs, commands, morph maps,
and model queries run only when enabled. Move V5 migrations to
migrations-v5 (loaded only when enabled), remove Flux from production
Docker/install paths, and add isolation tests.

tests/Feature/V5DevelopmentIsolationTest.php

@@ -0,0 +1,82 @@
+<?php
+
+use Illuminate\Support\Facades\Artisan;
+use Symfony\Component\Process\Process;
+
+function inspectV5RegistrationForEnvironment(string $environment): array
+{
+    $script = <<<'PHP'
+    $environment = $argv[1];
+    putenv("APP_ENV={$environment}");
+    $_ENV['APP_ENV'] = $environment;
+    $_SERVER['APP_ENV'] = $environment;
+
+    require 'vendor/autoload.php';
+    $app = require 'bootstrap/app.php';
+    $app->make(Illuminate\Contracts\Console\Kernel::class)->bootstrap();
+
+    echo json_encode([
+        'routes' => collect($app['router']->getRoutes()->getRoutes())
+            ->map(fn ($route) => $route->uri())
+            ->values()
+            ->all(),
+        'migration_paths' => $app->make('migrator')->paths(),
+        'horizon_supervisors' => array_keys(config("horizon.environments.{$environment}", [])),
+    ], JSON_THROW_ON_ERROR);
+    PHP;
+
+    $process = new Process([PHP_BINARY, '-r', $script, $environment], base_path());
+    $process->mustRun();
+
+    return json_decode($process->getOutput(), true, flags: JSON_THROW_ON_ERROR);
+}
+
+it('registers v5 routes, migrations, and workers in development environments', function (string $environment) {
+    $registration = inspectV5RegistrationForEnvironment($environment);
+
+    expect($registration['routes'])
+        ->toContain('v5')
+        ->toContain('api/v1/internal/flux/resource-status')
+        ->and($registration['migration_paths'])->toContain(database_path('migrations-v5'))
+        ->and($registration['horizon_supervisors'])->toContain('v5reconcile');
+})->with(['local', 'development', 'dev', 'testing']);
+
+it('does not register v5 routes, migrations, or workers outside development', function (string $environment) {
+    $registration = inspectV5RegistrationForEnvironment($environment);
+
+    expect($registration['routes'])
+        ->not->toContain('v5')
+        ->not->toContain('api/v1/internal/flux/resource-status')
+        ->and($registration['migration_paths'])->not->toContain(database_path('migrations-v5'))
+        ->and($registration['horizon_supervisors'])->not->toContain('v5reconcile');
+})->with(['production', 'staging']);
+
+it('keeps v5 schema changes out of the default migration path', function () {
+    $v5MigrationFiles = collect(glob(database_path('migrations/*.php')))
+        ->filter(fn (string $path) => str_contains((string) file_get_contents($path), "'v5_"));
+
+    expect($v5MigrationFiles)->toBeEmpty();
+});
+
+it('does not ship the v5 Flux runtime in the production container', function () {
+    $productionCompose = file_get_contents(base_path('docker-compose.prod.yml'));
+    $productionDockerfile = file_get_contents(base_path('docker/production/Dockerfile'));
+
+    expect($productionCompose)
+        ->not->toContain('COOLIFY_FLUX')
+        ->not->toContain('/data/coolify/flux')
+        ->and($productionDockerfile)
+        ->not->toContain('COOLIFY_FLUX_VERSION')
+        ->not->toContain('/usr/local/bin/flux');
+});
+
+it('blocks v5 console commands when v5 is disabled', function (string $command) {
+    config()->set('v5.enabled', false);
+
+    expect(Artisan::call($command))->toBe(1)
+        ->and(Artisan::output())->toContain('V5 is only available in development environments.');
+})->with([
+    'flux:dev',
+    'v5:flux-generate-keys',
+    'v5:sync-dev-lima-servers',
+]);