fix: trend preview uses USDT profit, snapshot risk budget, and money RR across four exchanges

Co-authored-by: Cursor <cursoragent@cursor.com>

crypto_monitor_gate_bot/app.py

@@ -2839,6 +2839,7 @@ def parse_and_compute_trend_pullback_plan(form_dict):
         "leg_amounts_json": leg_json,
         "grid": grid,
         "leg_amounts": leg_list,
+        "contract_size": float(market.get("contractSize") or 1),
     }
     return payload, None
 
@@ -5611,6 +5612,14 @@ def render_main_page(page="trade"):
 
                 trend_preview = row_to_dict(pr)
                 preview_expires_ms = int(pr["expires_at_ms"])
+                if not trend_preview.get("contract_size"):
+                    try:
+                        ensure_markets_loaded()
+                        ex_sym = trend_preview.get("exchange_symbol") or trend_preview.get("symbol")
+                        mk = exchange.market(ex_sym)
+                        trend_preview["contract_size"] = float(mk.get("contractSize") or 1)
+                    except Exception:
+                        pass
                 trend_preview, trend_preview_levels = build_trend_preview_level_rows(trend_preview)
             elif pr:
                 trend_preview_expired = True