Adds a complete Linq iMessage channel adapter that replaces the existing
iMessage channel's Mac Mini + dedicated Apple ID + SSH wrapper + Full Disk
Access setup with a single API key and phone number.
Core implementation (src/linq/):
- types.ts: Linq webhook event and message types
- accounts.ts: Multi-account resolution from config (env/file/inline token)
- send.ts: REST outbound via Linq Blue V3 API (messages, typing, reactions)
- probe.ts: Health check via GET /v3/phonenumbers
- monitor.ts: Webhook HTTP server with HMAC-SHA256 signature verification,
replay protection, inbound debouncing, and full dispatch pipeline integration
Extension plugin (extensions/linq/):
- ChannelPlugin implementation with config, security, setup, outbound,
gateway, and status adapters
- Supports direct and group chats, reactions, and media
Wiring:
- Channel registry, dock, config schema, plugin-sdk exports, and plugin
runtime all updated to include the new linq channel
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
