Fix partial loads when a script errors on load.

[Saturn745]

• Fix partial loads when a script errors on load.
• Fix /lualink reload|unload erroring on scripts that aren't already loaded.

[Copilot]

Pull Request Overview

This pull request addresses issues when a script errors during load by cleaning up partial registrations and improves error handling for script unload/reload commands.

• Wraps the main file load in a pcall and cleans up state on failure.
• Adds checks for whether a script is loaded before attempting unload or reload in LuaLink.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/main/resources/lua/scriptmanager.lua	Wraps loadMainFile in pcall and cleans up partial state on error.
src/main/resources/lua/lualink.lua	Adds script loaded checks and improves error messages during unload/reload.

[Saturn745]

Interesting...