Method usage

core/src/commands.rs:294–296

(&self)

        "Show or switch the current model"
    }
    fn usage(&self) -> Option<&str> {
        Some("/model [provider/model]")
    }
    fn execute(&self, args: &str, ctx: &CommandContext) -> CommandOutput {
        if args.is_empty() {
            CommandOutput::text(format!("Current model: {}", ctx.model))