Initial commit: NanoClaw - Personal Claude assistant via WhatsApp

A minimal Node.js application that connects Claude Agent SDK to WhatsApp
using baileys. Features per-group memory via CLAUDE.md files, session
continuity, scheduled tasks, and Gmail integration via MCP.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

groups/CLAUDE.md

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+# NanoClaw Global Memory
+
+This file is read by all group conversations. Only the main channel can write here.
+
+## About
+
+Personal Claude assistant via WhatsApp.
+
+Assistant name is configured in `src/config.py` (ASSISTANT_NAME).
+
+## Commands
+
+From any group:
+- `@{name} [message]` - Talk to Claude
+- `/clear` - Reset conversation (keeps memory)
+- `@{name} list tasks` - Show scheduled tasks
+
+From main channel only:
+- `@{name} add group "Name"` - Register a new group
+- `@{name} remove group "Name"` - Unregister a group
+- `@{name} list groups` - Show registered groups
+- `@{name} remember [fact]` - Add to global memory
+
+## Preferences
+
+<!-- Add global preferences here -->
+
+## Notes
+
+<!-- Add persistent notes here -->