fix: serve chat-widget.js correctly in production

- Copy product/ into Docker image (was missing from final stage)
- Fix static file path: ../../product → ../product (wrong depth from dist/index.js)
- Add ANTHROPIC_API_KEY to K8s manifest (chat endpoint was returning 500)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/index.ts

@@ -38,6 +38,22 @@ import { notifyNewPilotRequest } from './notifications/index.js';
 import redis from './redis.js';
 import { handleChat, type ChatMessage } from './chat.js';
 
+process.on('uncaughtException', (err) => {
+  console.error('FATAL uncaughtException:', err);
+  if (err && typeof err === 'object') {
+    console.error('Stack:', (err as Error).stack);
+  }
+  process.exit(1);
+});
+
+process.on('unhandledRejection', (reason, promise) => {
+  console.error('FATAL unhandledRejection at:', promise, 'reason:', reason);
+  if (reason && typeof reason === 'object') {
+    console.error('Stack:', (reason as Error).stack);
+  }
+  process.exit(1);
+});
+
 const app = express();
 app.use(cookieParser());
 app.use(cors({
@@ -58,7 +74,7 @@ app.use(express.urlencoded({ extended: true }));
 
 // ── Static files (videos, assets) ──────────────────────────────────────────
 app.use('/public', express.static('/vaults/public'));
-app.use(express.static(new URL('../../product', import.meta.url).pathname));
+app.use(express.static(new URL('../product', import.meta.url).pathname));
 
 // ── Config ─────────────────────────────────────────────────────────────────
 const PORT = process.env.PORT ?? 3456;