fix(v0.2.5): monotonic loss ratchet + golden session + never-profitable grace

- Fix #3: Grace period capped at 2min for trades that NEVER saw profit
- Fix #4: effective_max_loss and max_atr_loss can only tighten (monotonic)
- Golden Session: loss_mult*0.70, profit_mult*0.85, grace*0.60
- market_context now includes is_golden, session_name, session_volatility
- Enhanced dynamic log with [GOLDEN] tag, ratchet values, ever_profitable

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

main_live.py

@@ -2523,6 +2523,14 @@ class TradingBot:
                         _market_ctx[col if col != "histogram" else "macd_hist"] = (
                             vals.tail(1).item() if len(vals) > 0 else None
                         )
+                # v0.2.5: Pass session info for Golden Session awareness
+                try:
+                    _sess = self.session_filter.get_status_report()
+                    _market_ctx["session_name"] = _sess.get("current_session", "")
+                    _market_ctx["is_golden"] = "GOLDEN" in _sess.get("current_session", "").upper()
+                    _market_ctx["session_volatility"] = _sess.get("volatility", "medium")
+                except Exception:
+                    _market_ctx["is_golden"] = False
 
             # Evaluate with smart risk manager (dynamic thresholds v5)
             should_close, reason, message = self.smart_risk.evaluate_position(