<?php
// /var/www/html/api/screens-health.php
// Sert screens-health.json avec CORS + cache court. Zero regression.
header("Content-Type: application/json; charset=utf-8");
header("Access-Control-Allow-Origin: *");
header("Cache-Control: public, max-age=30");
$file = __DIR__ . "/screens-health.json";
if (!file_exists($file)) {
    http_response_code(404);
    echo json_encode(["error" => "health_not_yet_generated", "hint" => "cron will populate /api/screens-health.json soon"]);
    exit;
}
readfile($file);