Update app.py

app.py

@@ -28,6 +28,7 @@ available_models = {
     "Nzinga":  load_xgb_model("mjpsm/Nzinga-xgb-model",  "Nzinga_xgb_model.json"),
     "Bisa":    load_xgb_model("mjpsm/Bisa-xgb-model",    "Bisa_xgb_model.json"),
     "Zamani":  load_xgb_model("mjpsm/Zamani-xgb-model",  "Zamani_xgb_model.json"),
+    "Tamu":    load_xgb_model("mjpsm/Tamu-xgb-model",    "Tamu_xgb_model.json"),
 }
 
 # Archetype list (15 total, placeholders for now)