refactor(fe): overhaul — split types, type-safe WS, remove dead deps/code

- Remove unused deps: gsap, @tanstack/react-query, three, r3f, drei, autoprefixer
- Split types from shared/api/client.ts into entities/{guild,voice,media,ui,recording,dashboard}
- Type-safe WebSocket handlers using WsEventMap — 0 'as' casts in App.tsx
- Replace gsap with framer-motion in AuthOverlay
- Remove dead code: useMascotSummary, gsapCardHover, live/components/index barrel
- Fix bare console calls → use createLogger from @bete/shared/logger
- Clean up unused imports and variables (aiVariant, etc.)

Co-Authored-By: Claude <noreply@anthropic.com>

services/frontend/src/shared/hooks/useAudioTransmit.ts

@@ -1,6 +1,7 @@
 // ─── Audio transmit hook — captures mic, encodes to PCM, sends via WebSocket ──
 import { useCallback, useRef, useState } from "react";
 import { getAPIURL } from "../api/client.js";
+// note: this hook only uses API functions, not entity types
 import { createLogger } from "../lib/logger";
 
 const SAMPLE_RATE = 24000;