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/TerminalPageHeaderTest.php

@@ -60,6 +60,9 @@ it('defaults to a system console theme that follows the page color mode', functi
         ->toContain("attributeFilter: ['class', 'data-theme']")
         ->and($appCss)
         ->toContain('[data-console-theme="system"]')
+        ->toContain('html:not(.dark) .application-console-shell[data-console-theme="system"]')
+        ->toContain('--console-theme-border: #d4d4d8')
+        ->toContain('background: transparent')
         ->toContain('html.dark .application-console-shell[data-console-theme="system"]');
 });