Method load_graph_binary

rust-core/src/storage/persistence.rs:127–138

(&self, project_id: &str)

    }

    fn load_graph_binary(&self, project_id: &str) -> io::Result<Option<PetCodeGraph>> {
        let graph_file = self.project_dir(project_id).join("graph.bin");
        
        if !graph_file.exists() {
            return Ok(None);
        }
        
        let graph = PetGraphStorageManager::load_from_binary(&graph_file)
            .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
        
        Ok(Some(graph))
    }

    pub fn save_file_hash(&self, project_id: &str, file_path: &str, hash: &str) -> io::Result<()> {
        let project_dir = self.project_dir(project_id);