update

backend/generator.py

@@ -635,13 +635,17 @@ async def _generate_onepager(
     recherche_path = content_path.parent / f"{content_path.stem}.recherche.md"
     fragment_paths.append(recherche_path)
     recherche_path.unlink(missing_ok=True)
+    # Projekte bekommen eigene Recherche-Dimensionen — Produkt-Fragen
+    # (Version, Lizenz, Alternativen) laufen dort ins Leere.
     if project:
         source = _prompt("OnePager-Quelle-Projekt", project=project)
+        recherche_template = "OnePager-Recherche-Projekt"
     else:
         source = _prompt("OnePager-Quelle-Thema", topic=topic)
+        recherche_template = "OnePager-Recherche"
     slots = [{
         "key": f"{guide_id}-recherche",
-        "prompt": _prompt("OnePager-Recherche", topic=topic, source=source, out_path=recherche_path, extra=_extra(instructions)),
+        "prompt": _prompt(recherche_template, topic=topic, source=source, out_path=recherche_path, extra=_extra(instructions)),
         "role": "quick", "capabilities": "files" if project else "full",
         "payload": (lambda result: recherche_path.read_text(encoding="utf-8") if recherche_path.exists() else None),
     }]

backend/routes.py

@@ -122,6 +122,10 @@ async def remove_bausteine(topic: str):
 async def create(req: GuideCreateRequest):
     if req.format != "OnePager" and not bausteine_path(req.topic.strip()).exists():
         raise HTTPException(400, "Erst Bausteine erstellen")
+    # Kein Duplikat-Start: pro Thema+Format höchstens eine laufende Generierung
+    for g in await list_guides():
+        if g["topic"] == req.topic.strip() and g["format"] == req.format and g["status"] in ("queued", "generating"):
+            raise HTTPException(409, "Generierung läuft bereits")
     await create_topic(req.topic.strip())
     now = datetime.now(timezone.utc).isoformat()
     guide = {