New specialized agents:
- ios-dev: iOS/Swift/SwiftUI development
- web-dev: Next.js/React/web development
- research: Research and analysis tasks
Each agent has:
- Own agent.json config with specialized system prompt
- Auto-loaded relevant skills
- Domain-specific best practices and rules
- Proper model configuration
Also added:
- SPECIALIZED_AGENTS.md documentation
- CLI_README_TEMPLATE.md for reference
