worker: add serve.ts — health/status server + worker boot for container deploy

Container entrypoint used by the 24/7 deploy (root/larp-quant-agent-bot): serves
a health/status endpoint on APP_PORT and boots the worker loop in one process.
Local dev keeps using `pnpm worker` (loop.ts) directly.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

worker/serve.ts

@@ -0,0 +1,42 @@
+/**
+ * Container entrypoint for the always-on Telegram worker.
+ *
+ * The platform's docker deploy proxies the domain to APP_PORT, so we expose a
+ * tiny health / status endpoint and boot the worker loop in the same process.
+ * Secrets (TELEGRAM_BOT_TOKEN / TELEGRAM_CHAT_ID) arrive as real env vars via
+ * Forgejo Secrets + RUNTIME_KEYS — config.ts falls back to process.env when
+ * there is no .env.local. State persists to QUANT_DATA_FILE (=/data on the
+ * persistent volume) so the paper track record survives redeploys.
+ *
+ * Local dev still uses `pnpm worker` (worker/loop.ts) directly — this file is
+ * only the HTTP wrapper the platform needs.
+ */
+import { createServer } from 'node:http'
+import { getState } from './store.ts'
+import './loop.ts' // boots the worker: boot message → tick loop → command poll
+
+const started = Date.now()
+const PORT = Number(process.env.APP_PORT || process.env.PORT || 8080)
+
+createServer((req, res) => {
+  if (req.url === '/health') {
+    res.writeHead(200, { 'content-type': 'text/plain' })
+    res.end('ok')
+    return
+  }
+  const body: Record<string, unknown> = {
+    ok: true,
+    service: 'quant-agent-bot',
+    uptimeSec: Math.round((Date.now() - started) / 1000),
+  }
+  try {
+    const st = getState()
+    body.equity = Math.round(st.equity)
+    body.open = st.positions.length
+    body.closed = st.closed.length
+  } catch {
+    /* state not loaded yet — health still ok */
+  }
+  res.writeHead(200, { 'content-type': 'application/json' })
+  res.end(JSON.stringify(body))
+}).listen(PORT, () => console.log(`[serve] health on :${PORT}`))