docs(code): rewrite README with intent detection and AHP 2.2 capabilities

- Add How It Works section explaining intent detection and context perception
- Document 8 intent types (locate, understand, retrieve, explore, reason, validate, compare, track)
- Add Agent Styles section (general, explore, plan, verification, code_review)
- Add AHP Protocol section with 18 harness points
- Add Memory System section with 4 memory types
- Add MCP Integration section
- Update architecture diagram to show intent detector
- Keep all existing documentation (tools, hooks, skills, teams, etc.)

Author: claude