update

backend/elements.py

@@ -71,7 +71,7 @@ def _topic_context(topic: str, limit: int = 12000) -> str:
     bp = bausteine_path(topic)
     if bp.exists():
         parts.append(bp.read_text(encoding="utf-8"))
-    for fmt in ("Guide", "OnePager"):
+    for fmt in ("Guide",):  # Roadmap ist ein Graph ohne Prosa-Sections → kein Text-Kontext
         content = _json_datei(guide_content_path(topic, fmt))
         if content:
             for ch in content.get("chapters", []):