Function resolve_shm_pointers 

pub async fn resolve_shm_pointers(
    ctx_handle: SendShmContext,
    names: Vec<String>,
    timeout_ms: u64,
) -> Option<ShmMap>

Helper to wait for SHM context and resolve pointers.

• ctx_handle: The SendShmContext wrapper.
• names: List of variable names to resolve.
• timeout_ms: Max time to wait for configuration.