feat(p8): /v1/calendar REST + kernel-client methods + @insignia/iios-meeting-web

Task 8.6: CalendarController exposes schedule/request(+fromCallback/fromClaim)/
list/get/consent/transcript/summarize/action-items/providers(+sync) (session-auth).
kernel-client RestClient gains scheduleMeeting/requestMeeting/listMeetings/
getMeeting/setConsent/generateTranscript/summarizeMeeting/listActionItems/
connect+syncCalendarProvider + Meeting/MeetingParticipant/MeetingActionItem types.
New @insignia/iios-meeting-web (MeetingProvider + useMeetings/useMeeting/useSchedule/
useConsent/useSummarize/useActionItems). Boundary: meeting-web -> contracts +
kernel-client (fails on meeting-web->service).

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

packages/iios-meeting-web/tsup.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'tsup';
+
+export default defineConfig({
+  entry: ['src/index.ts'],
+  format: ['esm'],
+  dts: true,
+  clean: true,
+  external: ['react', 'react-dom', '@insignia/iios-kernel-client'],
+});