refactor: move index.php to public, add env example

public/index.php

@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+use Controllers\TaskController;
+use DI\Bridge\Slim\Bridge;
+use DI\Container;
+use Controllers\HomeFrontController;
+use Slim\Handlers\Strategies\RequestResponseArgs;
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+$container = new Container();
+$app = Bridge::create($container);
+$app->addBodyParsingMiddleware();
+
+// this strategy is preferable because we aren't using a lot of named placeholders
+$routeCollector = $app->getRouteCollector();
+$routeCollector->setDefaultInvocationStrategy(new RequestResponseArgs());
+
+
+$app->get('/', [HomeFrontController::class, 'home']);
+
+
+$app->get('/tasks/{id}', [TaskController::class, 'getTask']);
+$app->delete('/tasks/{id}', [TaskController::class, 'delete']);
+
+$app->get('/tasks', [TaskController::class, 'getTasks']);
+$app->post('/tasks', [TaskController::class, 'addTask']);
+
+
+$app->run();