Génération PDF asynchrone : jobs avec polling + progression

- Nouveau système de jobs : POST /jobs (async), GET /jobs/{id} (status), GET /jobs/{id}/result (PDF), DELETE /jobs/{id}
- worker.php spawné en arrière-plan via nohup, lit la sortie pagedjs-cli ligne par ligne via proc_open et écrit la progression dans tmp/job_{id}.status.json
- Migration de pagedjs-cli en install local (node_modules) pour persister le patch protocolTimeout via patch-package
- CI : déploie package.json, worker.php, patches/, et lance npm install (qui réapplique les patches via postinstall)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

public/index.php

@@ -50,11 +50,31 @@ if (!$auth->authenticate()) {
     exit;
 }
 
-// Endpoint de génération PDF
+// Endpoints
 if ($uri === '/generate') {
+    // Endpoint synchrone existant (rétro-compat)
     $generator = new \Web2Print\Services\PdfGenerator($config);
     $controller = new \Web2Print\Controllers\GenerateController($generator, $config);
     $controller->handle();
+} elseif ($uri === '/jobs') {
+    // POST /jobs : créer un job async
+    $jobs = new \Web2Print\Services\JobManager($config);
+    $controller = new \Web2Print\Controllers\JobsController($jobs, $config);
+    $controller->create();
+} elseif (preg_match('#^/jobs/([a-f0-9]+)/result$#', $uri, $m)) {
+    // GET /jobs/{id}/result : récupérer le PDF
+    $jobs = new \Web2Print\Services\JobManager($config);
+    $controller = new \Web2Print\Controllers\JobsController($jobs, $config);
+    $controller->result($m[1]);
+} elseif (preg_match('#^/jobs/([a-f0-9]+)$#', $uri, $m)) {
+    // GET /jobs/{id} : status — DELETE /jobs/{id} : cleanup
+    $jobs = new \Web2Print\Services\JobManager($config);
+    $controller = new \Web2Print\Controllers\JobsController($jobs, $config);
+    if ($_SERVER['REQUEST_METHOD'] === 'DELETE') {
+        $controller->delete($m[1]);
+    } else {
+        $controller->status($m[1]);
+    }
 } else {
     http_response_code(404);
     header('Content-Type: application/json');