NPCs gain phone_number and email (the phone book). A new 'phone' node type
holds a directory whose terminals each bind to an NPC via npc_id (the callee
reached by dialing that number) and wire to the dialogue that plays on
connect. Migration 029 adds the columns/type; repositories and admin API
thread contacts and the per-terminal NPC binding. Authoring foundation only
— the dial runtime and tools sidebar come next.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
