Accuracy audit fixes: alerts carry validated per-TF trail plans + 13 more

Five-agent audit of the signal path; all fixes are delivery/measurement
side. Regression-proven behavior-neutral on validated signals: the 5yr
M15 replay reproduces the pinned book exactly (+210.65R PF 1.35
WR 57.8% MaxDD 33.90R). Tests 215 -> 221.

- TradeSetup carries trail_arm_r/trail_dist_r stamped from the producing
  config; Telegram trail plan reads them (was showing default 0.6/0.75
  instead of the validated M15 arm 0.70 / M5 dist 0.85)
- Alert dedup: fingerprint = (signal, quality, direction); entry movement
  compared against last-ALERTED entry/risk (old SL-dist bucket churned on
  ATR drift -> near-duplicate alerts every candle)
- Fresh fetches enforce the closed-bar boundary check with one 3s grace
  retry, then warn (feed lag no longer silently analyzes the prior bar)
- Backtest max DD includes the zero baseline (opening losing streaks
  were undercounted; pinned M15 DD unchanged)
- Replay loads the regime-filter TF when the H4-ADX gate is on (was a
  silent no-op for M5/M15 primaries)
- clear_cache under _cache_lock; dead ROC zero-cross branches removed
  from both engines (provably unreachable); RSS dates via
  parsedate_to_datetime (named zones no longer stamped UTC); event risk
  grades from the soonest event; .env inline comments stripped;
  auto-scan skips NEUTRAL like the breach path; report_to_dict honors
  the weight-0 skip rule and emits strategy/trail params; PB funnel
  counts spread_gate/accepted; session-filter fail-open paths log loudly
- Docs corrected to match validated code (H&S neckline = lower peak,
  exhaustion anchors farthest tracked swing) with re-validation warnings

Claude-Session: https://claude.ai/code/session_01R5soRUeRBi8kHMB99csrJy

news_engine.py

@@ -15,6 +15,7 @@ import time
 import xml.etree.ElementTree as ET
 from dataclasses import dataclass, field
 from datetime import datetime, timezone
+from email.utils import parsedate_to_datetime
 from typing import Dict, List, Optional, Tuple
 
 import requests
@@ -281,14 +282,20 @@ class NewsEngine:
         """
         base, quote = self._parse_pair(pair_symbol)
 
-        # Check upcoming high-impact events
+        # Check upcoming high-impact events. Grade from the SOONEST
+        # matching event, not the first listed — an unsorted feed could
+        # otherwise report "caution" for a far event while a nearer one
+        # warrants "danger".
+        soonest = None
         for event in context.events_upcoming_1h:
             if event.is_high_impact and event.currency in (base, quote):
-                mins = event.minutes_until
-                if mins <= self.config.pre_event_buffer_minutes:
-                    return "danger", f"{event.currency} {event.event} in {mins:.0f}min"
-                else:
-                    return "caution", f"{event.currency} {event.event} in {mins:.0f}min"
+                if soonest is None or event.minutes_until < soonest.minutes_until:
+                    soonest = event
+        if soonest is not None:
+            mins = soonest.minutes_until
+            if mins <= self.config.pre_event_buffer_minutes:
+                return "danger", f"{soonest.currency} {soonest.event} in {mins:.0f}min"
+            return "caution", f"{soonest.currency} {soonest.event} in {mins:.0f}min"
 
         # Check for recent high-impact releases. A surprise print (actual
         # away from forecast) keeps the market unstable longer than an
@@ -650,11 +657,20 @@ class NewsEngine:
         if not date_str:
             return None
 
+        # RFC 822/2822 forms, with or without seconds, numeric offsets AND
+        # named zones (GMT, EST/EDT, PST…). The old strptime "%Z" path
+        # accepted ANY abbreviation but attached no offset, so e.g. an EST
+        # pubDate was silently stamped UTC — a 5-hour error.
+        try:
+            dt = parsedate_to_datetime(date_str.strip())
+            if dt is not None:
+                if dt.tzinfo is None:   # unknown zone name — assume UTC
+                    return dt.replace(tzinfo=timezone.utc)
+                return dt.astimezone(timezone.utc)
+        except (TypeError, ValueError):
+            pass
+
         formats = [
-            "%a, %d %b %Y %H:%M:%S %z",   # RFC 822 with numeric tz offset
-            "%a, %d %b %Y %H:%M:%S %Z",   # RFC 822 with tz abbreviation (GMT/UTC)
-            "%a, %d %b %Y %H:%M %Z",      # RFC 822 without seconds (MyFXBook)
-            "%a, %d %b %Y %H:%M %z",      # RFC 822 without seconds, numeric offset
             "%Y-%m-%dT%H:%M:%S%z",         # ISO 8601 with offset
             "%Y-%m-%d %H:%M:%S",           # ISO 8601 naive (assume UTC)
         ]