- Add ios-developer.md: Native iOS development with Swift/SwiftUI
- Add ui-ux-designer.md: Interface design, wireframes, and design systems
- Update README.md: Added both agents to appropriate sections
- Update agent count from 47 to 48 total agents
- Update Sonnet count from 28 to 29 agents (both use sonnet model)
- Add agents to Planning & Architecture and Development sections
