Show live risk-sizing estimate on plan page instead of stale manual qty.

When 以损定仓 is on, state() overlays next-open k/qty/exit from market preview.

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

backend/app/strategy/engine.py

@@ -128,6 +128,32 @@ class StrategyEngine:
         risk_option_unit = self.ledger.get_setting_float("risk_option_unit", 2.0)
         risk_exit_unit = self.ledger.get_setting_float("risk_exit_unit", 15.0)
         risk_last_k = self.ledger.get_setting_float("risk_last_k", 0.0)
+        risk_preview: dict[str, Any] | None = None
+        # 以损定仓：监控页展示「下一次开仓」实时估算，避免仍显示上次手填/过期名义
+        if sizing_mode == "risk_based":
+            try:
+                from .risk_sizing import preview_risk_sizing
+
+                risk_preview = preview_risk_sizing(self.db)
+                if risk_preview.get("ok"):
+                    if risk_preview.get("perp_qty_eth") is not None:
+                        perp_qty = float(risk_preview["perp_qty_eth"])
+                    if risk_preview.get("option_qty_eth") is not None:
+                        opt_qty = float(risk_preview["option_qty_eth"])
+                    if risk_preview.get("net_profit_target") is not None:
+                        net_target = float(risk_preview["net_profit_target"])
+                        exit_amt = net_target
+                    if risk_preview.get("k") is not None:
+                        risk_last_k = float(risk_preview["k"])
+                    if risk_preview.get("perp_unit") is not None:
+                        risk_perp_unit = float(risk_preview["perp_unit"])
+                    if risk_preview.get("option_unit") is not None:
+                        risk_option_unit = float(risk_preview["option_unit"])
+                    if risk_preview.get("exit_unit") is not None:
+                        risk_exit_unit = float(risk_preview["exit_unit"])
+            except Exception:
+                logger.exception("risk sizing preview for state() failed")
+                risk_preview = {"ok": False, "detail": "以损定仓预览失败"}
         rest_until = row["rest_until_ms"]
         rest_left = 0
         if rest_until:
@@ -172,6 +198,7 @@ class StrategyEngine:
             "risk_option_unit": risk_option_unit,
             "risk_exit_unit": risk_exit_unit,
             "risk_last_k": risk_last_k if risk_last_k > 0 else None,
+            "risk_sizing_preview": risk_preview,
             "min_option_hours": min_hours,
             "min_option_leverage": min_opt_lev,
             "atm_open_offset_enabled": atm_off_on,

frontend/src/pages/Plan.tsx

@@ -145,14 +145,23 @@ export default function PlanPage() {
   const pos = plan?.position;
   const open = !!pos?.has_position;
   const exitMode = plan?.exit_mode ?? "fixed_usdt";
-  const exitTarget = plan?.exit_target_usdt ?? plan?.net_profit_target ?? 15;
+  const riskBased =
+    plan?.risk_based === true || plan?.sizing_mode === "risk_based";
+  const riskLiveOk = !riskBased || plan?.risk_sizing_preview?.ok === true;
+  const displayPerpQty = riskLiveOk ? (plan?.perp_qty_eth ?? 1) : null;
+  const displayOptQty = riskLiveOk ? (plan?.option_qty_eth ?? 2) : null;
+  const exitTarget = riskLiveOk
+    ? (plan?.exit_target_usdt ?? plan?.net_profit_target ?? 15)
+    : null;
   const netPnl = pos?.net_pnl ?? 0;
   const movePct = pos?.move_pct ?? 0;
   const exitRuleLabel =
     exitMode === "premium_multiple"
       ? `权利金×${fmt(plan?.premium_exit_multiple ?? 1, 2)}`
       : plan?.risk_based || plan?.sizing_mode === "risk_based"
+        ? exitTarget != null
           ? `以损定仓 · 固定 ${fmt(exitTarget)} U（基数${fmt(plan?.risk_exit_unit ?? 15)}）`
+          : `以损定仓 · 待估算（基数${fmt(plan?.risk_exit_unit ?? 15)}）`
         : `固定 ${fmt(plan?.net_profit_target ?? 15)} U`;
   const phaseLabel = PHASE_ZH[plan?.phase || ""] || plan?.phase || "—";
   const atmRule = plan?.fixed_direction_enabled
@@ -206,7 +215,9 @@ export default function PlanPage() {
             <span className={`plan-mobile-pnl-num mono ${pnlClass(open ? netPnl : null)}`}>
               {open ? fmt(netPnl) : "—"}
             </span>
-            <span className="plan-mobile-sub mono">目标 {fmt(exitTarget)} U</span>
+            <span className="plan-mobile-sub mono">
+              目标 {exitTarget != null ? `${fmt(exitTarget)} U` : "—"}
+            </span>
           </div>
           <div className="plan-mobile-pnl-block">
             <span className="plan-mobile-label">到期</span>
@@ -237,7 +248,11 @@ export default function PlanPage() {
             </p>
             <p>
               <span className="plan-rules-k">开仓</span>
-              永续 {fmt(plan?.perp_qty_eth ?? 1, 2)} ETH / {fmt(plan?.leverage, 0)}x
+              永续{" "}
+              {displayPerpQty != null
+                ? `${fmt(displayPerpQty, 2)} ETH`
+                : "—"}{" "}
+              / {fmt(plan?.leverage, 0)}x
               · 期权 {fmt(plan?.option_qty_eth ?? 2, 2)} ETH 名义 · 剩余≥
               {fmt(plan?.min_option_hours, 0)}h · 期权杠杆≥
               {fmt(plan?.min_option_leverage, 0)}x · {atmRule}
@@ -354,11 +369,27 @@ export default function PlanPage() {
                       {plan?.risk_last_k
                         ? ` · k=${fmt(plan.risk_last_k, 1)}`
                         : ""}
+                      {plan?.risk_sizing_preview?.budget != null
+                        ? ` · 预算${fmt(plan.risk_sizing_preview.budget, 2)}U`
+                        : ""}
+                      {plan?.risk_sizing_preview?.max_loss != null
+                        ? ` · 估亏${fmt(plan.risk_sizing_preview.max_loss, 2)}U`
+                        : ""}
+                      {plan?.risk_sizing_preview?.ok === false
+                        ? ` · ${String(plan.risk_sizing_preview.detail || "预览失败")}`
+                        : ""}
                       {" · "}
                     </>
                   ) : null}
-                  永续{fmt(plan?.perp_qty_eth ?? 1, 2)}ETH/期权
+                  永续
-                  {fmt(plan?.option_qty_eth ?? 2, 2)}ETH · 剩余≥
+                  {displayPerpQty != null
+                    ? `${fmt(displayPerpQty, 2)}ETH`
+                    : "—"}
+                  /期权
+                  {displayOptQty != null
+                    ? `${fmt(displayOptQty, 2)}ETH`
+                    : "—"}{" "}
+                  · 剩余≥
                   {fmt(plan?.min_option_hours, 0)}h · 期权杠杆≥
                   {fmt(plan?.min_option_leverage, 0)}x
                   {plan?.fixed_direction_enabled
@@ -451,7 +482,11 @@ export default function PlanPage() {
                     {open ? fmt(netPnl) : "—"}
                   </span>
                   {" / "}
-                  {open || exitMode === "fixed_usdt" ? fmt(exitTarget) : "—"}
+                  {open || exitMode === "fixed_usdt"
+                    ? exitTarget != null
+                      ? fmt(exitTarget)
+                      : "—"
+                    : "—"}
                 </span>
               </div>
               <div className="kv">