TellCategory enum (Nervous, Angry, Friendly, Guarded, RoutineDeviation)
with DerivedTellState component. derive_tell_state system runs after
update_mood and detect_routine_deviation. Tell state derived from NPC
axis values per D-024: Secret+low Tolerance→Nervous, low Contentment+
Hostile→Angry, high Contentment+Friendly→Friendly, high Secret→Guarded.
v0.1 renderer is monologue text, not visual animation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>