Architecture: Duplicate type definitions causing compilation errors

[Aussie-Nomad]

Problem

Multiple files contained duplicate definitions of core types, causing ambiguous type lookup errors and compilation failures.

Impact

• 260+ compilation errors across 13 files
• Cannot determine which type definition to use
• Build system completely broken
• Development workflow halted

Root Cause

• Types defined in multiple locations without proper imports
• Shared/Types.swift created as central repository but caused conflicts
• No clear type ownership strategy
• Rapid development without proper architecture planning

Solution Implemented

• Removed duplicate definitions from Shared/Types.swift
• Kept types in their most appropriate locations
• Created modular type definitions in feature-specific files
• Implemented proper import structure

Files Affected

• Shared/Types.swift (removed duplicates)
• Theme.swift, PackageCasting.swift, KeychainService.swift
• AIService.swift, UserSettings.swift, BuilderModel.swift

Prevention

• Clear type ownership strategy
• Proper module boundaries
• Code review for duplicate definitions
• Automated linting for type conflicts

Status

Resolved - All duplicate definitions removed, compilation successful.