FIX: Use python3 not python

FIX: Launch Gradio instead of Marimo

FIX: Unset PORT and set ZEROCLAW_GATEWAY_PORT=7862 (HF Spaces sets PORT=7860)

Start ZeroClaw without --port flag (uses config.toml)

FIX: Use zeroclaw gateway --port 7862 (explicit port flag)

FIX: Re-enable ZeroClaw on port 7862 for Pi Agent LLM routing

FIX: Use marimo run (not edit) without --headless for HF Spaces

FIX: Use marimo edit (not run) for interactive UI mode

FIX: Disable ZeroClaw gateway (port 7860 conflict with Marimo)

Batch 1: Core (app.py, Dockerfile, scripts)