Add the snackbar, badges, rich tooltips, alerts, stats and empty states

<x-toast> hosts the snackbar queue for the Toasts concern and
window.materialToast(), one at a time, paused on hover and focus, with
an optional action; it listens from the moment its script loads, so a
toast dispatched before Alpine starts is shown rather than lost.
<x-badge> is M3's dot and count, plus a tonal or outlined status label;
<x-rich-tooltip> is transient or persistent; <x-alert>, <x-stat> and
<x-empty-state> are built from M3's parts.

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

resources/views/components/alert.blade.php

@@ -0,0 +1,65 @@
+{{-- A notice in the page: a state that needs saying — storage is full, the link has expired.
+
+     Not an M3 component (M3's banner is gone); drawn in M3's terms: the state's container colour
+     (tinted, never filled), a medium corner, the state's icon, a title-small `title`, body-medium
+     text from `description` or the slot, and an `actions` slot for one or two text buttons.
+     `color` (alias `tone`): `info` (the default), `success`, `warning`, `error`, `primary`,
+     `secondary`, `tertiary`, or `neutral` for surface-container-high. `icon` replaces the state's
+     icon; `:icon="false"` drops it. `dismissible` adds a close button that hides it in the browser.
+
+     Errors and warnings are `role="alert"` and announced at once; the rest are `role="status"`. --}}
+
+@props([
+    'title' => null,
+    'description' => null,
+    'color' => null,
+    'tone' => null,
+    'icon' => null,
+    'dismissible' => false,
+])
+
+@php
+    $color = in_array($color ?? $tone, ['info', 'success', 'warning', 'error', 'primary', 'secondary', 'tertiary', 'neutral'], true) ? ($color ?? $tone) : 'info';
+
+    $icon = $icon === false ? null : ($icon ?? [
+        'info' => 'info', 'success' => 'check_circle', 'warning' => 'warning', 'error' => 'error',
+        'primary' => 'info', 'secondary' => 'info', 'tertiary' => 'info', 'neutral' => 'info',
+    ][$color]);
+
+    $colours = [
+        'info' => 'bg-info-container text-on-info-container', 'success' => 'bg-success-container text-on-success-container',
+        'warning' => 'bg-warning-container text-on-warning-container', 'error' => 'bg-error-container text-on-error-container',
+        'primary' => 'bg-primary-container text-on-primary-container', 'secondary' => 'bg-secondary-container text-on-secondary-container',
+        'tertiary' => 'bg-tertiary-container text-on-tertiary-container', 'neutral' => 'bg-surface-container-high text-on-surface',
+    ][$color];
+@endphp
+
+<div
+    role="{{ in_array($color, ['error', 'warning'], true) ? 'alert' : 'status' }}"
+    @if ($dismissible) x-data="{ shown: true }" x-show="shown" x-transition.opacity @endif
+    {{ $attributes->class(['flex items-start gap-3 rounded-corner-md p-4', $colours]) }}
+>
+    @if ($icon)
+        <x-icon :name="$icon" filled class="size-6" />
+    @endif
+
+    <div class="min-w-0 flex-1 space-y-1 self-center">
+        @if ($title)
+            <p class="type-title-sm">{{ $title }}</p>
+        @endif
+
+        @if ($description || $slot->isNotEmpty())
+            <div class="type-body-md">{{ $description ?? $slot }}</div>
+        @endif
+
+        @isset($actions)
+            <div class="-ms-3 flex flex-wrap gap-2 pt-1">{{ $actions }}</div>
+        @endisset
+    </div>
+
+    @if ($dismissible)
+        <button type="button" class="state-layer focus-ring -m-2 inline-flex size-10 shrink-0 items-center justify-center rounded-corner-full" aria-label="{{ __('Dismiss') }}" x-on:click="shown = false">
+            <x-icon name="close" class="size-5" />
+        </button>
+    @endif
+</div>