Reuses the existing portal-token/SSE mechanism (customers.portalToken,
/api/portal/events) for anonymous widget visitors instead of building a
parallel auth system. Public API: session bootstrap + messages endpoint,
both scoped by a non-secret siteKey with optional origin allowlist.
Embeddable script (public/widget.js) is a small self-contained vanilla JS
file: floating button + iframe kept mounted for a live SSE connection,
with a postMessage bridge for the unread badge. Admin UI at
Settings -> Виджет manages sites and shows the embed snippet.
Also generalized recordTelegramInboundMessage -> recordChatInboundMessage
(channel param) since Telegram and the widget need the identical
find-or-create-open-ticket heuristic.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QcXH24ky6zjk2UyK5oZUPH
ogrechkoandClaude Sonnet 5
4efce5f307