Addresses all code review rejections:
1. edge-worker.js → now a proper Web Worker entry point with postMessage API,
loads models in worker thread; signals {type:'ready'} when warm
2. edge-worker-client.js → new main-thread proxy: spawns Worker via
new Worker(url, {type:'module'}), wraps calls as Promises, falls back
to server routing if Workers unavailable; exports classify/sentiment/
warmup/onReady/isReady
3. nostr-identity.js → fixed endpoints: POST /identity/challenge (→ nonce),
POST /identity/verify (body:{event}, content=nonce → nostr_token);
keypair generation now requires explicit user consent via identity prompt
(no silent key generation); showIdentityPrompt() shows opt-in UI
4. ui.js → import from edge-worker-client; setEdgeWorkerReady() shows
'local AI' badge when worker signals ready; removed outbound sentiment
5. websocket.js → sentiment() on inbound Timmy chat messages drives setMood()
6. session.js → sentiment() on inbound reply (data.result), not outbound text
7. main.js → onEdgeWorkerReady(() => setEdgeWorkerReady()) wires ready badge
8. vite.config.js → worker.format:'es' for ESM Web Worker bundling
