Function apply_scale_32 

pub fn apply_scale_32(
    value: i32,
    multiplier: i32,
    shift: i8,
    double_round: bool,
) -> Result<i32, IntegerError>

Apply TOSA’s 32-bit fixed-point scaling helper exactly.

This is apply_scale_32 from TOSA 1.0.1. The arithmetic right shift is explicit and every pseudocode REQUIRE is checked before calculating the result.