Add prior mean display

gp_visualizer.py

@@ -276,6 +276,7 @@ class GpVisualizer:
             )
         except Exception as e:
             logger.error(f"Error updating kernel: {e}")
+            gr.Info(f" ⚠️   Error updating kerne: {e}")
 
         new_canvas = self.plot(dataset, model_state, plot_options)
 
@@ -357,6 +358,11 @@ class GpVisualizer:
                         )
 
                     with gr.Tab("Model"):
+                        gr.Textbox(
+                            label="Prior Mean", 
+                            value="0",
+                            interactive=False,
+                        )
                         kernel_box = gr.Textbox(
                             label="Kernel", 
                             value=model_state.value.kernel,