feat(ui): polish email modal, search loading, and volume tables

Move profile email change into a modal with Alpine focus/close handling,
show a loading overlay during command-palette navigation, and adjust
volumes/config-diff grids plus related service/storage UI. Cover with
feature tests for search, profile, storage, and domains.

tests/Feature/GlobalSearchLoadingStateTest.php

@@ -0,0 +1,14 @@
+<?php
+
+it('shows a loading overlay while resource selection steps load', function () {
+    $view = file_get_contents(resource_path('views/livewire/global-search.blade.php'));
+
+    expect($view)
+        ->toContain('wire:loading.class="pointer-events-none opacity-40 blur-[2px]"')
+        ->toContain('wire:loading.flex')
+        ->toContain('selectServer,selectDestination,selectProject,selectEnvironment')
+        ->toContain('Loading selection…')
+        ->toContain('isPaletteTransitioning')
+        ->toContain('runPaletteTransition')
+        ->toContain('Loading…');
+});