```
refactor: simplify MCP server to use terminals model instead of tmux hierarchy
Replace complex session/window/pane tools with simplified terminal-focused API:
- Add list-terminals, create-terminal, capture-terminal tools
- Remove list, create-session, create-window, split-pane, kill tools
- Terminals are tmux windows in a default 'voice-dev' session
- Each terminal has contextual working directory
- Extract agent system prompt to external markdown file
- Update CLAUDE.md documentation with new terminal model
This simplifies voice interactions from "create window in session X" to
natural "create a terminal for the web project".
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
```