feat: add player upgrades

src/game/server/ServerGame.cpp

@@ -42,7 +42,7 @@ void ServerGame::UpdatePlayerStats() {
 void ServerGame::UpdateGoldMines() {
     for (auto& pair : m_Server->GetPlayers()) {
         game::Player* player = &pair.second;
-        player->AddGold(player->GetGoldPerSecond());
+        player->AddGold(player->getUpgrades().GetGoldPerSecond());
 
         // Update player money and exp every second
         protocol::UpdateMoneyPacket moneyPacket(player->GetGold());