Allow joining an existing room and validating tile placement

board-server/src/player.rs

@@ -1,9 +1,11 @@
 use board_network::protocol::ServerMessage;
+use board_shared::game::Hand;
 use futures::channel::mpsc::UnboundedSender;
 
 #[derive(Debug)]
 pub struct Player {
     pub name: String,
     pub score: u32,
+    pub hand: Hand,
     pub ws: Option<UnboundedSender<ServerMessage>>,
 }