Merge pull request Luce-Org#168 from dusterbloom/split/gemma4-01-repo-hygiene

chore(repo): ignore sisyphus working dossier

Author: davide221

.gitignore

@@ -71,3 +71,6 @@ fix-plan.md
 .env.local
 *.pem
 *.key
+
+# Sisyphus working dossier (preserve outside repo)
+.sisyphus/