Function mle_eval_with_eq_table 

pub fn mle_eval_with_eq_table<F: InnerTransparentField>(
    evaluations: &[F::Inner],
    eq_table: &[F],
    cfg: &F::Config,
) -> F

Evaluate an MLE at a point using a precomputed eq table.

Given evaluations[b] (in F::Inner form) and eq_table[b] = eq(b, r) (precomputed via build_eq_x_r_vec), returns \sum_{b} eq_table[b] * evaluations[b].

This is equivalent to DenseMultilinearExtension::evaluate_with_config but avoids cloning the evaluation vector (the fix-variables algorithm is destructive). When multiple MLEs share the same evaluation point, build the eq table once and call this function for each MLE.