[Feature] GUI Server Mode (serve subcommand)

[VascoSch92]

Summary

Add a rho serve subcommand to launch the full OpenHands web GUI via Docker.

Feature Details (from OpenHands-CLI)

CLI Subcommand

rho serve                    # Launch GUI server
rho serve --gpu              # Launch with GPU support
rho serve --mount-cwd        # Mount current working directory

Features

• Launch OpenHands Docker container with web GUI
• Auto-detect and validate Docker installation
• GPU support via nvidia-docker (--gpu flag)
• Mount current working directory into container (--mount-cwd)
• Persistence directory mapping for conversations
• Environment variable forwarding (LLM_API_KEY, etc.)
• Version management for Docker images

Docker Requirements

• Check if Docker is installed and running
• Pull appropriate OpenHands Docker image
• Configure port mappings
• Handle container lifecycle

Reference

See OpenHands-CLI implementation in openhands_cli/gui_launcher.py.

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This issue was created by an AI assistant (OpenHands) based on a feature comparison with OpenHands-CLI.

[VascoSch92]

📋 Tracked in: #18 (Feature Parity with OpenHands-CLI)