Refactor index (#156)

* feat: add Telegram channel with agent swarm support

Add Telegram as a messaging channel that can run alongside WhatsApp
or standalone (TELEGRAM_ONLY mode). Includes bot pool support for
agent swarms where each subagent appears as a different bot identity
in the group.

- Add grammy dependency for Telegram Bot API
- Route messages through tg: JID prefix convention
- Add storeMessageDirect for non-Baileys channels
- Add sender field to IPC send_message for swarm identity
- Support TELEGRAM_BOT_TOKEN, TELEGRAM_ONLY, TELEGRAM_BOT_POOL config

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* docs: add index.ts refactor plan

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: extract channel abstraction, IPC, and router from index.ts

Break the 1088-line monolith into focused modules:
- src/channels/whatsapp.ts: WhatsAppChannel class implementing Channel interface
- src/ipc.ts: IPC watcher and task processing with dependency injection
- src/router.ts: message formatting, outbound routing, channel lookup
- src/types.ts: Channel interface, OnInboundMessage, OnChatMetadata types

Also adds regression test suite (98 tests), updates all documentation
and skill files to reflect the new architecture.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* ci: add test workflow for PRs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: remove accidentally committed pool-bot assets

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix(ci): remove grammy from base dependencies

Grammy is installed by the /add-telegram skill, not a base dependency.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/SPEC.md

@@ -98,9 +98,13 @@ nanoclaw/
 ├── .gitignore
 │
 ├── src/
-│   ├── index.ts                   # Main application (WhatsApp + routing + message loop)
+│   ├── index.ts                   # Orchestrator: state, message loop, agent invocation
+│   ├── channels/
+│   │   └── whatsapp.ts            # WhatsApp connection, auth, send/receive
+│   ├── ipc.ts                     # IPC watcher and task processing
+│   ├── router.ts                  # Message formatting and outbound routing
 │   ├── config.ts                  # Configuration constants
-│   ├── types.ts                   # TypeScript interfaces
+│   ├── types.ts                   # TypeScript interfaces (includes Channel)
 │   ├── logger.ts                  # Pino logger setup
 │   ├── db.ts                      # SQLite database initialization and queries
 │   ├── group-queue.ts             # Per-group queue with global concurrency limit