Server-side infrastructure for information asymmetry in dialogue.
NPCs display role labels (Worker, Supervisor, Patron) instead of
real names until the player explicitly learns them via KG lookup.
NpcColorIndex (stable_id % 8) persists across name reveal.
ConversationEvent and DialogueResponseEvent carry display names +
color indices on the wire with serde(default) for compat.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Additional integration tests for conversation cooldown application, distance
termination with both NPCs receiving cooldown, and edge cases in the NPC-to-NPC
conversation pipeline.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Implements server-authoritative per-word occlusion for NPC conversations.
ConversationEventBuffer drains into ObserverSnapshot each tick so the client
receives only words audible from the player's position. Updates test fixtures
to include the new conversation_events and conversation_ended fields.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>