feat(ui): polish domains UX and dark-mode loading accents

Group service domain tables with inline redirect controls, live-save
redirects without full refreshes, and only auto-pair www hosts when a
www redirect is active. Align helper tooltips, server-timing HUD, and
loading spinners with dark-theme accents; default theme-color to dark.

tests/Feature/DockerCleanupExecutionStyleTest.php

@@ -0,0 +1,19 @@
+<?php
+
+test('docker cleanup execution output uses light and dark theme surfaces', function () {
+    $view = file_get_contents(resource_path('views/livewire/server/docker-cleanup-executions.blade.php'));
+
+    expect($view)
+        ->toContain('bg-white text-neutral-700')
+        ->toContain('dark:bg-neutral-950 dark:text-neutral-300');
+});
+
+test('docker cleanup executions show a loading state while opening an execution', function () {
+    $view = file_get_contents(resource_path('views/livewire/server/docker-cleanup-executions.blade.php'));
+
+    expect($view)
+        ->toContain('wire:loading.attr="disabled"')
+        ->toContain('wire:target="selectExecution({{ data_get($execution, \'id\') }})"')
+        ->toContain('wire:loading.remove')
+        ->toContain('<x-loading wire:loading');
+});