Attack indicator

New Features

• Added /attackindicator toggle command — players can now individually enable/disable damage indicators
• Player toggle states persist across server restarts

Bug Fixes

• Fixed potential thread safety issues with concurrent indicator spawning
• Fixed resource leak in update checker (connection not properly closed)
• Fixed potential NullPointerException when projectile has no shooter
• Fixed Y-axis random offset not being applied

Improvements

• Armor stands now use optimized properties (small, no baseplate, no arms) for better performance
• Improved tab completion for commands

Permissions

• attackindicator.toggle — allows toggling indicators (default: true)