incr/app/Http/Controllers/Milestones/MilestoneController.php

<?php

namespace App\Http\Controllers\Milestones;

use App\Http\Controllers\Controller;
use App\Models\Milestone;
use Illuminate\Http\Request;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\JsonResponse;

class MilestoneController extends Controller
{
    public function store(Request $request): RedirectResponse
    {
        $request->validate([
            'target' => 'required|integer|min:1',
            'description' => 'required|string|max:255',
        ]);

        Milestone::create([
            'target' => $request->target,
            'description' => $request->description,
        ]);

        return back()->with('success', 'Milestone created successfully');
    }

    public function index(): JsonResponse
    {
        $milestones = Milestone::orderBy('target')->get();

        return response()->json($milestones);
    }
}