Method save_graph_binary

rust-core/src/storage/persistence.rs:90–98

(&self, project_id: &str, graph: &PetCodeGraph)

    }

    fn save_graph_binary(&self, project_id: &str, graph: &PetCodeGraph) -> io::Result<()> {
        let project_dir = self.project_dir(project_id);
        let graph_file = project_dir.join("graph.bin");
        
        PetGraphStorageManager::save_to_binary(graph, &graph_file)
            .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
        
        Ok(())
    }

    pub fn load_graph(&self, project_id: &str) -> io::Result<Option<PetCodeGraph>> {
        match self.storage_mode {