Initial scaffolding: PS_Launcher v0.2

Client (C# / .NET 8 / WPF, MVVM via CommunityToolkit.Mvvm):
- PSLauncher.App: WPF UI dark theme (Epic-style sidebar + hero + big play button)
  with UpdateAvailableDialog rendering Markdown release notes via Markdig.Wpf.
- PSLauncher.Core: services for installation registry (scans Proserve v{X.Y.Z}/),
  process launcher, manifest fetch, SHA-256 integrity, HTTP download with
  progress, ZIP install via .tmp + atomic rename, update orchestrator.
- PSLauncher.Models: RemoteManifest, InstalledVersion, LocalConfig DTOs.

Server (PHP 8 for OVH mutualisé, deployed under www/PS_Launcher/):
- Front controller + routes /manifest and /releasenotes/{version}.
- Static signed-manifest workflow with tools/sign-manifest.php CLI to
  recompute SHA-256 and sizeBytes after each ZIP upload.
- .htaccess: HTTPS redirect, rewrite, security headers.
- config.example.php template; real config.php is gitignored.

Cohabiting versions: each release lives in its own Proserve v{version}/ folder
under installRoot. Old versions are never deleted automatically.

Roadmap: v0.3 = HTTP Range resume + Polly retry + state.json,
v0.4 = MySQL license + Ed25519 signatures + DPAPI, v0.5 = settings/UX polish.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

server/api/index.php

@@ -0,0 +1,52 @@
+<?php
+declare(strict_types=1);
+
+require __DIR__ . '/lib/Response.php';
+
+use PSLauncher\Response;
+
+// Charge la config (hors git ; copier config.example.php → config.php au déploiement)
+$configPath = __DIR__ . '/config.php';
+if (!is_file($configPath)) {
+    http_response_code(500);
+    header('Content-Type: application/json; charset=utf-8');
+    echo json_encode(['error' => 'config_missing', 'message' => 'config.php absent — copier config.example.php']);
+    exit;
+}
+$config = require $configPath;
+
+// Le path est passé via REQUEST_URI parce que le RewriteRule utilise PATH_INFO
+$uri = $_SERVER['REQUEST_URI'] ?? '/';
+$path = parse_url($uri, PHP_URL_PATH) ?? '/';
+
+// Strip prefix /PS_Launcher/api
+if (preg_match('#^.*?/PS_Launcher/api(.*)$#', $path, $m)) {
+    $route = trim($m[1], '/');
+} else {
+    $route = trim($path, '/');
+}
+
+$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
+
+try {
+    if ($method === 'GET' && ($route === '' || $route === 'manifest')) {
+        require __DIR__ . '/routes/Manifest.php';
+        \PSLauncher\Routes\Manifest::handle($config);
+        return;
+    }
+
+    if ($method === 'GET' && preg_match('#^releasenotes/([0-9]+\.[0-9]+\.[0-9]+)$#', $route, $m)) {
+        require __DIR__ . '/routes/Releasenotes.php';
+        \PSLauncher\Routes\Releasenotes::handle($m[1]);
+        return;
+    }
+
+    if ($method === 'GET' && $route === 'health') {
+        Response::json(['status' => 'ok', 'serverTime' => gmdate('c')]);
+    }
+
+    Response::error('not_found', "Route not found: {$route}", 404);
+} catch (\Throwable $e) {
+    error_log('[PSLauncher] ' . $e->getMessage() . "\n" . $e->getTraceAsString());
+    Response::error('server_error', 'Internal server error', 500);
+}