Records the decision to compose standard NIPs (99 listing, 78 reservation,
52 calendar, 17/59 DMs) and reserve aiolabs kind:22000/22001 only for the
ephemeral availability RPC. Documents rejected alternatives (bespoke 2200x
booking record, RSVP-as-booking, deprecated NIP-15) and flags the 22000/1
allocation to register in workspace CLAUDE.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VUQCfdqiLSsFS2jcGnaFD
