feat(roles): Rappasoft list, slim create form, and 2-tab role view

1. Roles list now uses a Rappasoft table (RoleTable): search/sort, per-row
   view/edit/delete, and built-in bulk selection + 'Delete selected'. The
   /admin/roles page is a plain view embedding <livewire:role-table />.
   RoleForm create/edit now only has Name + Description (permissions removed).
2. New RoleView page (/admin/roles/{role}) with two tabs:
   - 'Details': header with role name + Back button; description with Edit/Delete
     buttons; table of users holding the role (avatar+name | last name | status).
   - 'Permissions': all permissions grouped by section (by resource), each with a
     toggle switch to grant/revoke for this role (Admin keeps 'manage all').
Removed the old RoleManager component/view (superseded).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

resources/views/admin/roles.blade.php

@@ -0,0 +1,25 @@
+<x-app-layout>
+    <x-slot name="header">
+        <div class="flex items-center justify-between">
+            <h2 class="font-semibold text-xl text-gray-800 leading-tight">
+                {{ __('Roles & permissions') }}
+            </h2>
+            <div class="flex items-center gap-2">
+                <a href="{{ route('admin.permissions') }}" class="btn btn-outline btn-sm gap-1" wire:navigate>
+                    <x-heroicon-o-table-cells class="w-4 h-4" /> {{ __('Matrix view') }}
+                </a>
+                <a href="{{ route('admin.roles.create') }}" class="btn btn-primary btn-sm gap-1" wire:navigate>
+                    <x-heroicon-o-plus class="w-4 h-4" /> {{ __('New role') }}
+                </a>
+            </div>
+        </div>
+    </x-slot>
+
+    <div class="py-12">
+        <div class="max-w-7xl mx-auto sm:px-6 lg:px-8">
+            <div class="bg-white rounded-lg shadow p-6">
+                <livewire:role-table />
+            </div>
+        </div>
+    </div>
+</x-app-layout>