feat(iios-kernel-client): reconcile to chat-web surface, publish 0.1.1

Brings the shared SDK up to the fuller client chat-web had vendored, so
frontends consume one source of truth instead of copying it:

- types: Message gains senderId/senderName/attachment/parentInteractionId/
  annotations; add Attachment, AnnotationGroup, AnnotationEvent, ThreadSummary,
  SavedItem, LoginResult; MessageEvents gains `annotation`; SocketLike gains
  connected + optional timeout.
- MessageSocket: onConnected, openThread(opts), richer sendMessage(opts)
  (attachment/mentions/parentInteractionId, back-compatible with contentRef),
  pin/save/react via annotate, focus, reconnect-re-subscribe-all.
- RestClient: login, listUsers, listThreads, createThread, listSaved,
  addParticipant.

Bump 0.1.0 -> 0.1.1. Whole monorepo still builds (Message change is additive
for iios-message-web/iios-support-web/demos).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/iios-kernel-client/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@insignia/iios-kernel-client",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "type": "module",
   "main": "dist/index.js",
   "module": "dist/index.js",