moves all api logic inside PlayerView, found weird bug in unpack_gold_value (floating error)

src/api.rs

@@ -127,7 +127,7 @@ pub fn execute(
             response.push_update(Update::Wealth(
                 db::AsPlayer(conn, id).update_wealth(amount)?,
             ));
-            response.notify(format!("Money updated !"));
+            response.notify(format!("Mis à jour ({}po)!", amount));
         }
         ApiActions::BuyItems(id, params) => {
             let mut cumulated_diff: Vec<db::Wealth> = Vec::with_capacity(params.len());