Reduce blocked hours, enable M5 alerts, show NY time on dashboard

- Blocked hours reduced to 0-2 UTC only (daily rollover)
- M5 signals now broadcast to Telegram like M15/H1/H4
- Live dashboard shows New York time (auto EDT/EST via zoneinfo)

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

telegram_bot.py

@@ -32,6 +32,7 @@ import sys
 import time
 from concurrent.futures import ThreadPoolExecutor
 from datetime import datetime, timezone
+from zoneinfo import ZoneInfo
 from typing import Dict, List, Optional, Set
 
 import websockets
@@ -299,7 +300,8 @@ def _format_stats_dashboard() -> str:
     if not _signal_stats:
         return "📊 *Live Dashboard*\n\n_Waiting for first scan…_"
 
-    now = datetime.now(timezone.utc).strftime("%H:%M:%S UTC")
+    _ny_tz = ZoneInfo("America/New_York")
+    now = datetime.now(_ny_tz).strftime("%H:%M:%S %Z")
     lines = [f"📊 *Live Dashboard* — {now}", ""]
 
     for symbol in SCAN_PAIRS:
@@ -486,10 +488,6 @@ async def _scan_timeframe(
     _update_level_cache(reports)
     _update_signal_stats(reports, tf)
 
-    if tf == Timeframe.M5:
-        logger.info("M5 scan: data analysis only — no Telegram broadcast")
-        return
-
     await _refresh_dashboard(bot)
 
     actionable = [r for r in reports if r.signal_quality in ("A+", "A", "B", "C")]