Complete the showcase and record Phase 10

Shows the plain tooltip on its own, checks that every component appears
in the showcase, and records the namespace change and the fresh
application check in the plan.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V9NnLxnPp8vaaurb3Z1MFy

resources/views/showcase/index.blade.php

@@ -3,7 +3,7 @@
 @section('content')
     <main class="mx-auto max-w-6xl space-y-16 px-4 py-10">
         <p class="max-w-3xl type-body-lg text-on-surface-variant">
-            Every token and component, in this application's own scheme. Components appear here as they land.
+            Every token and component, in this application's own scheme.
         </p>
 
         @include('livewire-material::showcase.sections.colour')

resources/views/showcase/sections/communication.blade.php

@@ -15,6 +15,13 @@
             <x-button label="With an action" variant="tonal" x-on:click="materialToast('Share deleted', { action: { label: 'Undo', handler: () => materialToast('Share restored', { type: 'info' }) } })" />
             <x-button label="Until dismissed" variant="tonal" x-on:click="materialToast('Your storage is almost full', { type: 'warning', timeout: 0 })" />
             BLADE,
+        'Plain tooltips' => <<<'BLADE'
+            <x-button icon="content_copy" tooltip="Copy link" />
+            <x-button icon="qr_code_2" tooltip-bottom="Show QR code" />
+            <x-tooltip text="Expires in 3 days" side="right">
+                <span tabindex="0" class="focus-ring rounded-corner-xs type-body-md text-on-surface-variant">holiday-photos.zip</span>
+            </x-tooltip>
+            BLADE,
         'Rich tooltips' => <<<'BLADE'
             <x-rich-tooltip title="Expiry" text="Recipients lose access after this time. Admins can change the longest time allowed.">
                 <x-button icon="help" aria-label="About expiry" />
@@ -59,7 +66,7 @@
 
     <p class="max-w-3xl type-body-md text-on-surface-variant">
         <code>&lt;x-badge&gt;</code>, <code>&lt;x-toast&gt;</code> (the snackbar host, fed by the <code>Toasts</code> concern or <code>materialToast()</code>),
-        <code>&lt;x-rich-tooltip&gt;</code>, <code>&lt;x-alert&gt;</code>, <code>&lt;x-stat&gt;</code> and <code>&lt;x-empty-state&gt;</code>.
+        <code>&lt;x-tooltip&gt;</code>, <code>&lt;x-rich-tooltip&gt;</code>, <code>&lt;x-alert&gt;</code>, <code>&lt;x-stat&gt;</code> and <code>&lt;x-empty-state&gt;</code>.
     </p>
 
     @foreach ($examples as $title => $code)