The only use was channel-registry.ts checking `err instanceof NetworkError`
to retry transient setup failures. Switched to a duck-type predicate
(`err.name === 'NetworkError'`) so the dep is no longer needed at trunk
level. Channel skills bring it in transitively when they install their
Chat SDK adapter package.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Channel adapter factories can now return a Promise, enabling adapters
that need async initialization like loading auth state from disk
(e.g. WhatsApp reading credentials via useMultiFileAuthState).
Existing sync factories are unaffected — await on a sync return is
a no-op. All current adapters remain synchronous.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
A NetworkError during adapter.setup() (e.g. Telegram deleteWebhook hitting
a DNS hiccup at boot) would log the failure and immediately give up,
leaving the channel permanently dead until the host process was manually
restarted — even though the host kept running and other channels worked.
Wrap the setup call in a small retry loop with backoff (2s, 5s, 10s) that
fires only on NetworkError. Misconfigs (bad tokens, invalid options) still
fail fast since they don't surface as NetworkError.
Universal across channels — applies to any adapter that throws
NetworkError from setup(), not just Telegram.
ChannelAdapter interface with setup/deliver/teardown/setTyping lifecycle.
Self-registration pattern via channel-registry. Host wiring in index-v2
bridges inbound messages to routeInbound and outbound delivery to adapters.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
