pub fn quantize(weights: &[f32], threshold: f32) -> Vec<Trit>Expand description
Quantize a slice of f32 weights to balanced ternary using threshold tau.
Rule: w > tau → +1 (truth) w < -tau → -1 (conflict) else → 0 (hold)
A tau of 0.5 * mean(|weights|) matches the BitNet b1.58 scheme.