Runner: Geruest, Eingabepruefung, Auth

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

runner/src/config.js

@@ -0,0 +1,19 @@
+// Konfiguration aus Umgebungsvariablen. Pfade sind HOST-Pfade (R6): der Runner mountet sie identisch.
+export function loadConfig(env = process.env) {
+  return {
+    token: env.PREVIEW_RUNNER_TOKEN || '',
+    giteaUrl: env.GITEA_URL || '',
+    giteaToken: env.GITEA_TOKEN || '',
+    baseHost: env.PREVIEW_BASE_HOST || 'project.webklar.com',
+    previewsRoot: env.PREVIEWS_ROOT || '/var/www/previews',
+    workRoot: env.RUNNER_WORK_ROOT || '/srv/webklar-preview-runner/work',
+    cacheRoot: env.RUNNER_CACHE_ROOT || '/srv/webklar-preview-runner/cache',
+    apiPort: 8080,
+    proxyPort: 8081,
+    minFreeBytes: 1.5 * 1024 ** 3,
+    buildTimeoutMs: 15 * 60e3,
+    devIdleMs: 20 * 60e3,
+    devMax: 3,
+    devReadyMs: 180e3,
+  };
+}