public function update(Request $request, Policy $policy)
{
    $request->validate([
        'type' => 'required|in:1,2',
        'title' => 'required|string|max:255',
        'description' => 'nullable|string',
    ]);

    $policy->type = $request->type;
    $policy->title = $request->title;
    $policy->description = $request->description;
    $policy->save();

    return back()->with('success', 'Policy updated successfully!');
}