Function miracle_window_set_transform 

pub unsafe extern "C" fn miracle_window_set_transform(
    window_internal: i64,
    transform_ptr: i32,
) -> i32

Set the 4x4 column-major transform matrix of a managed window. transform_ptr is a WASM linear memory offset pointing to 16 contiguous f32 values. Returns 0 on success, -1 on error.