feat(ui): Shadow UI redesign, domain management, and DNS autoconfigure (#11119)

Co-authored-by: ShadowArcanist <162910371+ShadowArcanist@users.noreply.github.com>

tests/Feature/SettingsBackupEmptyStateTest.php

@@ -0,0 +1,86 @@
+<?php
+
+use App\Livewire\SettingsBackup;
+use App\Models\InstanceSettings;
+use App\Models\Server;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Blade;
+use Illuminate\Support\Once;
+use Livewire\Livewire;
+
+uses(RefreshDatabase::class);
+
+test('empty component renders the actions slot', function () {
+    $html = Blade::render(<<<'BLADE'
+        <x-empty title="Backup is not configured" description="Needs a database." size="sm">
+            <x-slot:actions>
+                <button type="button">Configure backup</button>
+            </x-slot:actions>
+        </x-empty>
+    BLADE);
+
+    expect($html)
+        ->toContain('Backup is not configured')
+        ->toContain('Configure backup');
+});
+
+test('empty component renders the contents slot for backward compatibility', function () {
+    $html = Blade::render(<<<'BLADE'
+        <x-empty title="Metrics are disabled" size="sm">
+            <x-slot:contents>
+                <button type="button">Enable metrics</button>
+            </x-slot:contents>
+        </x-empty>
+    BLADE);
+
+    expect($html)
+        ->toContain('Metrics are disabled')
+        ->toContain('Enable metrics');
+});
+
+test('empty component prefers the actions slot when both action slots are provided', function () {
+    $html = Blade::render(<<<'BLADE'
+        <x-empty title="Conflict check" size="sm">
+            <x-slot:actions>
+                <button type="button">From actions</button>
+            </x-slot:actions>
+            <x-slot:contents>
+                <button type="button">From contents</button>
+            </x-slot:contents>
+        </x-empty>
+    BLADE);
+
+    expect($html)
+        ->toContain('From actions')
+        ->not->toContain('From contents');
+});
+
+test('instance backup settings show a configure button when backup is not set up', function () {
+    $rootTeam = Team::find(0) ?? Team::factory()->create(['id' => 0]);
+    $server = Server::factory()->create([
+        'id' => 0,
+        'team_id' => $rootTeam->id,
+        'ip' => '127.0.0.1',
+    ]);
+    $server->settings()->update([
+        'is_reachable' => true,
+        'is_usable' => true,
+        'force_disabled' => false,
+    ]);
+    InstanceSettings::forceCreate(['id' => 0]);
+    Once::flush();
+
+    $user = User::factory()->create();
+    $rootTeam->members()->attach($user->id, ['role' => 'admin']);
+
+    $this->actingAs($user);
+    session(['currentTeam' => ['id' => $rootTeam->id]]);
+
+    Livewire::test(SettingsBackup::class)
+        ->assertOk()
+        ->assertSee('Backup is not configured')
+        ->assertSee('Configure backup')
+        ->assertSeeHtml('wire:click="addCoolifyDatabase"');
+});