banco Decision-2.0 CPU: agregar el snapshot a sys.path (trae el paquete decision2/) y reportar el dispositivo

app.py

@@ -165,11 +165,17 @@ def _cargar() -> None:
     global MODEL
     if MODEL is not None:
         return
+    import sys
+
     from huggingface_hub import snapshot_download
 
+    ruta = snapshot_download(MODELO)
+    # Igual que con Clef: el snapshot trae el paquete `decision2/` pero no lo
+    # pone en sys.path, asi que hay que agregarlo a mano antes de importarlo.
+    if ruta not in sys.path:
+        sys.path.insert(0, ruta)
     from decision2 import Decision2
 
-    ruta = snapshot_download(MODELO)
     MODEL = Decision2.from_pretrained(ruta, device="cpu")
 
 
@@ -240,9 +246,10 @@ def preparar(texto: str = "hola", reply_to: str = "", historial: str = "") -> di
         r = MODEL.system_one(state=_estado(texto, reply_to, historial), questions=PREGUNTAS)
         dt = time.perf_counter() - t1
         d = _decidir(r.get("answers", {}))
-        return {"ok": True, "modelo": MODELO, "seg_carga": round(carga, 1),
-                "ms_inferencia": int(dt * 1000), "decision": d,
-                "answers": r.get("answers")}
+        dev = getattr(getattr(MODEL, "backend", None), "device", "?")
+        return {"ok": True, "modelo": MODELO, "dispositivo": str(dev),
+                "seg_carga": round(carga, 1), "ms_inferencia": int(dt * 1000),
+                "decision": d, "answers": r.get("answers")}
     except Exception as exc:  # noqa: BLE001
         return {"ok": False, "error": f"{type(exc).__name__}: {exc}",
                 "traceback": traceback.format_exc()[-1500:]}