Created a new DebuggerHelper class with Lazy<bool> initialization that is
shared by both LaunchOrderDetector and UnpackagedDetector. This eliminates
code duplication and provides a cleaner, more maintainable solution.
- Added DebuggerHelper.cs with lazy-initialized IsAttached property
- Refactored LaunchOrderDetector to use DebuggerHelper
- Refactored UnpackagedDetector to use DebuggerHelper
- Removed nullable bool pattern in favor of Lazy<bool>
