Critical: Massive PackageCasting.swift file causing maintainability issues

[Aussie-Nomad]

Problem

The PackageCasting.swift file has grown to 4,665 lines, making it extremely difficult to maintain and debug.

Impact

• Code is hard to navigate and understand
• Compilation errors are difficult to trace
• Multiple developers cannot work on the same file effectively
• Performance issues due to file size
• Violates single responsibility principle

Root Cause

• All package-related functionality was consolidated into a single file
• No modular architecture was implemented
• Rapid feature additions without refactoring

Solution Implemented

• Split into modular components: Models, Services, Views, Components
• Created PackageCastingModular.swift with clean separation
• Reduced complexity and improved maintainability

Files Affected

• DesktopApp/MacForge/Features/Tools/PackageCasting.swift (4,665 lines)
• Created: PackageCastingModular.swift, Models.swift, Services.swift, Components.swift

Priority

High - This was blocking development and causing multiple compilation errors.