Update app.py

app.py

@@ -142,7 +142,7 @@ def _purge_clap_pt_bins():
             except Exception:
                 pass
 
-# ---- Dependency guards (clear errors during boot) ---------------------------
+# ---- Dependency guards (early / clear errors) -------------------------------
 try:
     import audiotools  # provided by PyPI package 'descript-audiotools'
 except Exception as e:
@@ -208,6 +208,10 @@ def auto_load_models() -> str:
     ensure_clap_safetensors()
     _purge_clap_pt_bins()
 
+    # Lock HF Hub to offline so Transformers can't fetch a fresh .bin again
+    os.environ["HF_HUB_OFFLINE"] = "1"
+    os.environ["TRANSFORMERS_OFFLINE"] = "1"
+
     _model_dict, _cfg = load_model(MODEL_PATH, CONFIG_PATH, _device)
     logger.info("✅ Model loaded")
     return "✅ Model loaded"