feat(applications): add configurable stop grace period

Add centralized stop grace period resolution for application settings and use it across manual stops, preview stops, and deployments. Validate the Livewire advanced setting against shared min/max constants and cover persistence, fillable creation, and fallback behavior with tests.

tests/Feature/Livewire/Project/Application/AdvancedStopGracePeriodTest.php

@@ -0,0 +1,98 @@
+<?php
+
+use App\Livewire\Project\Application\Advanced;
+use App\Models\Application;
+use App\Models\ApplicationSetting;
+use App\Models\Environment;
+use App\Models\Project;
+use App\Models\Server;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Livewire\Livewire;
+
+uses(RefreshDatabase::class);
+
+function createApplicationForAdvancedStopGracePeriodTest(): Application
+{
+    $team = Team::factory()->create();
+    $server = Server::factory()->create(['team_id' => $team->id]);
+    $project = Project::factory()->create(['team_id' => $team->id]);
+    $environment = Environment::factory()->create(['project_id' => $project->id]);
+
+    return Application::create([
+        'name' => 'stop-grace-period-test-app',
+        'git_repository' => 'https://github.com/coollabsio/coolify',
+        'git_branch' => 'main',
+        'build_pack' => 'nixpacks',
+        'ports_exposes' => '3000',
+        'environment_id' => $environment->id,
+        'destination_id' => $server->standaloneDockers()->firstOrFail()->id,
+        'destination_type' => $server->standaloneDockers()->firstOrFail()->getMorphClass(),
+    ]);
+}
+
+beforeEach(function () {
+    $this->actingAs(User::factory()->create());
+});
+
+it('saves a valid stop grace period', function () {
+    $application = createApplicationForAdvancedStopGracePeriodTest();
+
+    Livewire::test(Advanced::class, ['application' => $application])
+        ->set('stopGracePeriod', '300')
+        ->call('saveStopGracePeriod')
+        ->assertHasNoErrors()
+        ->assertDispatched('success');
+
+    expect($application->settings()->first()->stop_grace_period)->toBe(300);
+});
+
+it('clears the stop grace period when submitted empty', function () {
+    $application = createApplicationForAdvancedStopGracePeriodTest();
+    $application->settings->update(['stop_grace_period' => 300]);
+
+    Livewire::test(Advanced::class, ['application' => $application->fresh()])
+        ->set('stopGracePeriod', '')
+        ->call('saveStopGracePeriod')
+        ->assertHasNoErrors()
+        ->assertDispatched('success');
+
+    expect($application->settings()->first()->stop_grace_period)->toBeNull();
+});
+
+it('rejects invalid stop grace periods', function (string $value, string $rule) {
+    $application = createApplicationForAdvancedStopGracePeriodTest();
+
+    Livewire::test(Advanced::class, ['application' => $application])
+        ->set('stopGracePeriod', $value)
+        ->call('saveStopGracePeriod')
+        ->assertHasErrors(['stopGracePeriod' => [$rule]]);
+
+    expect($application->settings()->first()->stop_grace_period)->toBeNull();
+})->with([
+    'below minimum' => ['0', 'min'],
+    'above maximum' => [(string) (MAX_STOP_GRACE_PERIOD_SECONDS + 1), 'max'],
+    'malformed integer' => ['10abc', 'integer'],
+    'decimal' => ['1.9', 'integer'],
+]);
+
+it('uses one second deployment timeout in local only when stop grace period is unset', function () {
+    config(['app.env' => 'local']);
+
+    $setting = new ApplicationSetting;
+
+    expect($setting->deploymentStopGracePeriodSeconds())->toBe(MIN_STOP_GRACE_PERIOD_SECONDS);
+
+    $setting->stop_grace_period = 10;
+
+    expect($setting->deploymentStopGracePeriodSeconds())->toBe(10);
+});
+
+it('uses default deployment timeout outside local when stop grace period is unset', function () {
+    config(['app.env' => 'production']);
+
+    $setting = new ApplicationSetting;
+
+    expect($setting->deploymentStopGracePeriodSeconds())->toBe(DEFAULT_STOP_GRACE_PERIOD_SECONDS);
+});