i forget

src/cli.rs

@@ -372,6 +372,21 @@ impl ChatCLI {
                         }
                     }
                 }
+                SessionAction::SetAsDefault(session_name) => {
+                    let mut config = crate::config::Config::load().unwrap_or_default();
+                    match config.set_default_session(session_name.clone()) {
+                        Ok(()) => {
+                            self.display.print_command_result(&format!(
+                                "Session '{}' is now the default session",
+                                session_name
+                            ));
+                        }
+                        Err(e) => {
+                            self.display.print_error(&format!("Failed to set default session: {}", e));
+                        }
+                    }
+                    // Continue to show session list
+                }
                 SessionAction::Cancel => {
                     return Ok(());
                 }