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

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01R5soRUeRBi8kHMB99csrJy

chart_patterns.py

@@ -12,9 +12,10 @@ Chart Patterns*) that are unambiguous from OHLC at bar close:
                                       the interim peak (neckline)
     double_top     bearish reversal   mirrored
     inv_hs         bullish reversal   inverse head & shoulders, break of
-                                      the neckline (max of the two peaks
-                                      flanking the head — conservative
-                                      horizontal line, no sloped fits)
+                                      the neckline (the LOWER of the two
+                                      peaks flanking the head — the earlier
+                                      horizontal trigger, no sloped fits;
+                                      validated as-is, see detector note)
     hs_top         bearish reversal   head & shoulders top, mirrored
     bull_flag      bullish continuation  strong pole, shallow ordered
                                       retrace, close at a new high
@@ -166,8 +167,10 @@ def _detect_hs(o, h, l, c, atr, cfg, bullish: bool) -> Optional[Dict]:
             return None
         if abs(s1 - s2) > cfg.cp_hs_shoulder_tol_atr * atr:
             return None
-        # Neckline: the LOWER of the two interim peaks — the price must
-        # clear both, so this is the conservative horizontal trigger.
+        # Neckline: the LOWER of the two interim peaks — the EARLIER of
+        # the two horizontal triggers (max() would demand clearing both
+        # peaks). The whole validated CP book (M5 BUY-only) ran on this
+        # trigger — do not flip to max() without full re-validation.
         p1 = float(h[i1 : i2 + 1].max())
         p2 = float(h[i2 : i3 + 1].max())
         neckline = min(p1, p2)