fix: update api decorator parameter to use named argument for predict endpoint

app.py

@@ -13,7 +13,7 @@ classifier = pipeline(
 )
 print("Model loaded successfully.")
 
-@app.api("/predict")
+@app.api(name="predict")
 @spaces.GPU
 def predict(text: str):
     """Detect PII in the given text and return aggregated spans."""