feat: notifiche Telegram dal paper trader via bot

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/live/telegram_notifier.py

@@ -0,0 +1,39 @@
+"""Notifiche Telegram per il paper trader."""
+from __future__ import annotations
+
+import os
+import urllib.request
+import urllib.parse
+import json
+
+BOT_TOKEN = os.environ.get("TELEGRAM_BOT_TOKEN", "")
+CHAT_ID = os.environ.get("TELEGRAM_CHAT_ID", "")
+
+NOTIFY_EVENTS = {
+    "SIGNAL", "OPENED", "CLOSED", "OPEN_FAILED", "CLOSE_FAILED",
+    "ERROR", "STARTUP", "SHUTDOWN", "TRAINING_FAILED",
+}
+
+
+def send_telegram(text: str) -> bool:
+    if not BOT_TOKEN or not CHAT_ID:
+        return False
+    try:
+        url = f"https://api.telegram.org/bot{BOT_TOKEN}/sendMessage"
+        data = urllib.parse.urlencode({"chat_id": CHAT_ID, "text": text, "parse_mode": "HTML"}).encode()
+        urllib.request.urlopen(url, data, timeout=10)
+        return True
+    except Exception:
+        return False
+
+
+def notify_event(event: str, data: dict | None = None):
+    if event not in NOTIFY_EVENTS:
+        return
+    lines = [f"📊 <b>{event}</b>"]
+    if data:
+        for k, v in data.items():
+            if k in ("signal",):
+                continue
+            lines.append(f"  {k}: {v}")
+    send_telegram("\n".join(lines))