1. Added a new feature: after setting a trading range, other instruments can be removed.
2. Fixed an issue where the online player count displayed incorrectly when joining a game in progress.
3. Optimized the Leaderboard display by adding distinguishing markers for players, making information clearer.
4. Technical indicator visibility settings can now be saved; after the update, all indicators may be hidden by default on first entry and can be enabled as needed.
5. Optimized NPC behavior logic.
6. Adjusted order submission rules to make the trading process more reasonable and smooth.