Function resolve_item 

pub fn resolve_item(
    base: &ItemDataFlat,
    bonus_ids: &[i32],
    scaling_data: &ItemScalingData,
    player_level: Option<i32>,
    drop_level: Option<i32>,
    forced_item_level: Option<i32>,
) -> ResolvedItem

Resolve an item’s full effective state from its bonus IDs (the weapon field is left for the sim).