fix: handle disabled digest outputs properly

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/modes/status.rs

@@ -245,6 +245,12 @@ fn build_meta_plugins_configured_table(settings: &config::Settings) -> Option<Ta
                     _ => {}
                 }
             }
+            // For digest plugin, check if the output is None (disabled)
+            else if plugin_config.name == "digest" {
+                if value.is_null() {
+                    continue;
+                }
+            }
             
             // Convert serde_yaml::Value to a string representation
             let value_str = match value {