Add automatic dashboard launch options for trading loop:
1. CLI integration (rdagent/app/cli.py)
- --with-dashboard/-d flag for web dashboard
- --cli-dashboard/-c flag for terminal UI
- --dashboard-port for custom port configuration
- Automatic background process spawning
2. Dashboard auto-start
- Web dashboard launches in background thread
- CLI dashboard opens in separate terminal window
- Graceful startup with 2-second delay
3. Process management
- Dashboard runs as daemon thread
- Automatic cleanup on main process exit
- Error handling for dashboard startup failures
4. Documentation
- Updated help text with examples
- Usage instructions in README
- Dashboard URLs displayed on startup
Usage examples:
rdagent fin_quant -d # Web dashboard
rdagent fin_quant -c # CLI dashboard
rdagent fin_quant -d -c # Both dashboards
rdagent fin_quant -d --port 5001 # Custom port