/// Model information for trace header
#[derive(Debug, Clone, Default)]
pub struct ModelInfo {
/// Model name/path
pub name: String,
/// Number of layers
pub num_layers: usize,
/// Hidden dimension
pub hidden_dim: usize,
/// Vocabulary size
pub vocab_size: usize,
/// Number of attention heads
pub num_heads: usize,
/// Quantization type (e.g., "Q4_K_M")
pub quant_type: Option<String>,
}