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/Users/Pages/EditUser.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Filament\Resources\Users\Pages;
+
+use App\Filament\Resources\Users\UserResource;
+use Filament\Resources\Pages\EditRecord;
+
+class EditUser extends EditRecord
+{
+    protected static string $resource = UserResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            \Filament\Actions\DeleteAction::make(),
+        ];
+    }
+
+    protected function afterSave(): void
+    {
+        $record = $this->record;
+        $role = $record->role;
+
+        // Sync the primary role
+        $record->syncRoles([$role]);
+    }
+}