App-shell HUD (mounted in App.tsx alongside HauntingLayer, visible on
every screen) that shows ambient idle status until a séance is active,
then streams `tell` WS frames as terminal-style log lines with a
"hacker witch" crescent-arc evil-meter gauge (occult sigils/runes fused
with Transcript.tsx's monospace log vocabulary).
- lib/evilMeter.ts: pure function computing a malevolent<->benevolent
belief from the accumulated tell history — starts wide/uncertain,
narrows geometrically and shifts per tell (deterministic hash of the
tell text, since tells never leak ground truth), and snaps to
definitive certainty on a successful ritual_complete's
revealed.alignment. Fully unit tested (narrowing, ordering,
determinism, ritual override, idle/empty history).
- lib/ghostLogBus.ts: tiny typed event bus (mirrors lib/haunting.ts's
HauntBus) so the app-shell-level GhostLog can react to live séance
frames — SeanceProvider is only mounted inside the séance route, so a
shell-level sibling can't read its context directly.
- state/seance.tsx: publish entity/tell/ritual_complete onto the bus,
and session_end on provider teardown so the HUD falls back to idle
when the seeker leaves the séance page.
- lib/types.ts: add the `tell` and `ritual_complete` server frames from
the Character Depth spec's Contract section (only what this
workstream consumes).
- components/GhostLog.tsx/.css: the HUD itself, plus i18n keys in
en.json/es.json.
168/168 frontend tests pass (137 pre-existing + 20 evilMeter + 11
GhostLog); tsc -b and the i18n coverage pretest are clean.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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