add-whatsapp

# Add WhatsApp Channel This skill adds WhatsApp support to NanoClaw. It installs the WhatsApp channel code, dependencies, and guides through authentication, registration, and configuration. ## Phase 1: Pre-flight ### Check current state Check if WhatsApp is already configured. If `store/auth/` exists with credential files, skip to Phase 4 (Registration) or Phase 5 (Verify). ```bash ls store/auth/creds.json 2>/dev/null && echo "WhatsApp auth exists" || echo "No WhatsApp auth" ``` ### Detect environment Check whether the environment is headless (no display server): ```bash [[ -z "$DISPLAY" && -z "$WAYLAND_DISPLAY" && "$OSTYPE" != darwin* ]] && echo "IS_HEADLESS=true" || echo "IS_HEADLESS=false" ``` ### Ask the user Use `AskUserQuestion` to collect configuration. **Adapt auth options based on environment:** If IS_HEADLESS=true AND not WSL → AskUserQuestion: How do you want to authenticate WhatsApp? - **Pairing code** (Recommended) - Enter a numeric code on your phone (no camera needed, requires phone number) - **QR code in terminal** - Displays QR code in the terminal (can be too small on some displays) Otherwise (macOS, desktop Linux, or WSL) → AskUserQuestion: How do you want to authenticate WhatsApp? - **QR code in browser** (Recommended) - Opens a browser window with a large, scannable QR code - **Pairing code** - Enter a numeric code on your phone (no camera needed, requires phone number) - **QR code in terminal** - Displays QR code in the terminal (can be too s...