Show a plain form field's errors under its name

Fields read their errors only under the wire:model name, so a Fortify
login form (name="email", no wire:model) never showed "These
credentials do not match". Without wire:model they now read the name,
turning brackets into dots.

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

resources/views/components/password.blade.php

@@ -17,7 +17,9 @@
 @php
     $model = $attributes->whereStartsWith('wire:model')->first();
     $id = $attributes->get('id') ?? 'field-'.substr(md5($model.'|'.$label.'|password'), 0, 12);
-    $messages = $model !== null && isset($errors) ? \Illuminate\Support\Arr::flatten($errors->get($model)) : [];
+    // A plain form's field is named, not bound: its errors are under its name (`files[]` → `files`, `a[b]` → `a.b`).
+    $errorKey = $model ?? (filled($attributes->get('name')) ? str_replace(['[]', '[', ']'], ['', '.', ''], (string) $attributes->get('name')) : null);
+    $messages = $errorKey !== null && isset($errors) ? \Illuminate\Support\Arr::flatten($errors->get($errorKey)) : [];
 @endphp
 
 <x-livewire-material::field :$id :$label :$hint :hint-class="$hintClass" :$messages :$icon :$size :$variant :class="$attributes->get('class')" x-data="{ shown: false }">