Update app.py

app.py

@@ -8,13 +8,17 @@ from fpdf import FPDF
 import tempfile
 from deep_translator import GoogleTranslator
 import warnings
+import xgboost as xgb  # ✅ Correct import for native XGBoost model
+
 warnings.filterwarnings("ignore")
 
-# Load models
-xgb = joblib.load("xgb_model.json")
+# ✅ Load models
+xgb_model = xgb.Booster()
+xgb_model.load_model("xgb_model.json")  # ✅ Load native .json format
+
 rf = joblib.load("rf_model.pkl")
 
-# Load catalog and sizes
+# ✅ Load catalog and sizes
 with open("tile_catalog.json", "r", encoding="utf-8") as f:
     tile_catalog = json.load(f)
 
@@ -159,7 +163,7 @@ def chat_fn(message, history, user_state={}):
 
     return reply("Type 'Floor' or 'Wall' to begin a new estimate."), None, user_state
 
-# Launch with clean intro
+# ✅ Launch with clean intro
 with gr.Blocks() as demo:
     chatbot = gr.ChatInterface(
         fn=chat_fn,
@@ -175,4 +179,4 @@ with gr.Blocks() as demo:
         additional_outputs=[gr.File(label="📄 Download Report")]
     )
 
-demo.launch()
+demo.launch()