update

backend/main.py

@@ -154,6 +154,11 @@ def state(topic: str):
     }
 
 
+@app.get("/api/health")
+def health():
+    return {"ok": True}
+
+
 @app.get("/api/topics/{topic}/guide")
 def guide_holen(topic: str):
     # kein markdown-Feld: das Frontend rendert aus kapitel; Roh-Markdown