feat: granular permissions, export backup, user/role management

- PermissionSeeder: 29 permissions with role mapping (admin/manager/staff)
- Policies updated to use hasPermissionTo() instead of hasRole()
- ExportBackup command: JSON per-table backup with chunk processing
- UserResource: CRUD users with role assignment (admin only)
- RoleResource: CRUD roles with permission assignment (admin only)
- UserPolicy + RolePolicy: admin-only access control
- ImportCskh: detailed skip logging with color in dry-run mode
- Widgets: permission-based visibility checks
- Tests: 8/8 pass (21 assertions)

app/Filament/Resources/Roles/Pages/EditRole.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Filament\Resources\Roles\Pages;
+
+use App\Filament\Resources\Roles\RoleResource;
+use Filament\Actions;
+use Filament\Resources\Pages\EditRecord;
+
+class EditRole extends EditRecord
+{
+    protected static string $resource = RoleResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\DeleteAction::make(),
+        ];
+    }
+
+    protected function afterSave(): void
+    {
+        $record = $this->record;
+        $permissionNames = $this->data['permissions'] ?? [];
+
+        $record->syncPermissions($permissionNames);
+    }
+
+    protected function mutateFormDataBeforeFill(array $data): array
+    {
+        $role = $this->record;
+        $data['permissions'] = $role->permissions->pluck('name')->toArray();
+
+        return $data;
+    }
+}