Add DeltaChat Channel

The adapter drives the @deltachat/stdio-rpc-server JSON-RPC subprocess directly — pure Node.js against the DeltaChat core library. Messages are delivered over email with Autocrypt/OpenPGP encryption.

Install

Pre-flight (idempotent)

Skip to Credentials if all of these are already in place:

• src/channels/deltachat.ts exists
• src/channels/index.ts contains import './deltachat.js';
• @deltachat/stdio-rpc-server is listed in package.json dependencies

Otherwise continue. Every step below is safe to re-run.

1. Fetch the channels branch