refactor: simplify open position details

frontend/src/components/dashboard/OpenTradesPanel.tsx

@@ -22,13 +22,12 @@ function pnlColor(v: number): string {
   return 'text-gray-300';
 }
 
-function maxHoldText(trade: PaperTrade, compact = false): string | null {
+function maxHoldText(trade: PaperTrade): string | null {
   const remaining = trade.sessions_remaining;
   if (remaining == null) return null;
   const held = trade.sessions_held ?? 0;
-  if (remaining < 0) return compact ? 'past max hold' : `${held} held · past max hold`;
+  if (remaining < 0) return `${held} held · past max hold`;
-  if (remaining === 0) return compact ? 'max hold reached' : `${held} held · max hold reached`;
+  if (remaining === 0) return `${held} held · max hold reached`;
-  if (compact) return `${remaining} ${remaining === 1 ? 'session' : 'sessions'} left`;
   return `${held} held · ${remaining} remaining`;
 }
 
@@ -40,6 +39,46 @@ function maxHoldColor(trade: PaperTrade): string {
   return remaining <= warningAt ? 'text-amber-300' : 'text-gray-400';
 }
 
+/** Quiet secondary telemetry below the R bar. Exact timing stays in the
+ * expanded row; this only communicates how far through max hold the trade is. */
+function HoldProgress({ trade }: { trade: PaperTrade }) {
+  const held = trade.sessions_held;
+  const remaining = trade.sessions_remaining;
+  if (held == null || remaining == null) return null;
+
+  const total = Math.max(1, held + Math.max(0, remaining));
+  const elapsedPct = remaining <= 0
+    ? 100
+    : Math.min(100, Math.max(0, (held / total) * 100));
+  const warningAt = Math.max(1, Math.ceil(total * 0.2));
+  const urgent = remaining <= warningAt;
+  const color = urgent ? 'bg-amber-400/75' : 'bg-sky-400/40';
+
+  return (
+    <div
+      className="relative h-[3px] rounded-full bg-white/[0.06]"
+      role="progressbar"
+      aria-label="Holding period"
+      aria-valuemin={0}
+      aria-valuemax={total}
+      aria-valuenow={Math.min(held, total)}
+      aria-valuetext={remaining < 0
+        ? `${held} sessions held, past maximum hold`
+        : `${held} sessions held, ${remaining} remaining`}
+      title="Holding-period progress — click for the exact session count"
+    >
+      <span
+        className={`absolute inset-y-0 left-0 rounded-full ${color}`}
+        style={{ width: `${elapsedPct}%` }}
+      />
+      <span
+        className={`absolute top-1/2 h-[5px] w-[2px] -translate-x-1/2 -translate-y-1/2 rounded-full ${color}`}
+        style={{ left: `${elapsedPct}%` }}
+      />
+    </div>
+  );
+}
+
 function DirTag({ direction }: { direction: string }) {
   const isLong = direction === 'long';
   return (
@@ -64,10 +103,22 @@ function Detail({ label, value, valueClass = 'text-gray-100' }: {
   );
 }
 
+function Fact({ label, value, valueClass = 'text-gray-300' }: {
+  label: string;
+  value: ReactNode;
+  valueClass?: string;
+}) {
+  return (
+    <span className="num inline-flex items-baseline gap-1.5 whitespace-nowrap">
+      <span className="text-[9px] uppercase tracking-[0.14em] text-gray-600">{label}</span>
+      <span className={`text-[11px] ${valueClass}`}>{value}</span>
+    </span>
+  );
+}
+
 /** Expanded row: full trade detail + price chart with entry / trail path. */
-function TradeDetail({ trade, exitLabel, exitMode, atrMultiplier, trailingPct, onClose, closing }: {
+function TradeDetail({ trade, exitMode, atrMultiplier, trailingPct, onClose, closing }: {
   trade: PaperTrade;
-  exitLabel: string | null;
   exitMode: 'time' | 'trailing' | 'atr_trailing' | 'target';
   atrMultiplier: number;
   trailingPct: number;
@@ -84,30 +135,28 @@ function TradeDetail({ trade, exitLabel, exitMode, atrMultiplier, trailingPct, o
     staleTime: 5 * 60_000,
   });
   const opened = new Date(trade.opened_at).toLocaleDateString('en-US', { month: 'short', day: 'numeric' });
+  const holdText = maxHoldText(trade);
+  const exitRuleText = exitMode === 'atr_trailing'
+    ? `${atrMultiplier.toFixed(1)}× ATR trail`
+    : exitMode === 'trailing'
+      ? `${Math.round(trailingPct)}% trailing stop`
+      : exitMode === 'target'
+        ? 'target / stop'
+        : null;
   const chartHint = trailMoved || exitMode === 'atr_trailing' || exitMode === 'trailing'
     ? 'entry · now · stop · trail · gate'
     : 'entry · now · stop · gate';
   return (
     <div className="flex flex-col gap-4 px-2 pb-4 pt-1">
-      <dl className="grid grid-cols-2 gap-x-8 gap-y-3 sm:grid-cols-4">
+      <dl className="grid grid-cols-2 gap-x-8 gap-y-3 md:grid-cols-4 xl:grid-cols-2">
-        <Detail label="opened" value={`${opened} · ${trade.shares} shares`} />
-        <Detail label="entry → now" value={
-          `${formatPrice(trade.entry_price)} → ${trade.current_price != null ? formatPrice(trade.current_price) : '—'}`
-        } />
         <Detail
           label="P&L"
           value={p ? `${money(p.pnl)} · ${p.pct >= 0 ? '+' : ''}${p.pct.toFixed(1)}%` : '—'}
           valueClass={p ? pnlColor(p.pnl) : 'text-gray-500'}
         />
-        <Detail
+        <Detail label="entry → now" value={
-          label="alpha vs SPY"
+          `${formatPrice(trade.entry_price)} → ${trade.current_price != null ? formatPrice(trade.current_price) : '—'}`
-          value={
+        } />
-            trade.alpha_pct != null
-              ? `${trade.alpha_pct >= 0 ? '+' : ''}${trade.alpha_pct.toFixed(1)}%${trade.alpha_usd != null ? ` · ${money(trade.alpha_usd)}` : ''}`
-              : '—'
-          }
-          valueClass={trade.alpha_pct != null ? pnlColor(trade.alpha_pct) : 'text-gray-500'}
-        />
         <Detail
           label={trailMoved ? 'trail' : 'stop'}
           value={
@@ -123,34 +172,36 @@ function TradeDetail({ trade, exitLabel, exitMode, atrMultiplier, trailingPct, o
           }
         />
         <Detail
-          label="target"
+          label="alpha vs SPY"
+          value={
+            trade.alpha_pct != null
+              ? `${trade.alpha_pct >= 0 ? '+' : ''}${trade.alpha_pct.toFixed(1)}%${trade.alpha_usd != null ? ` · ${money(trade.alpha_usd)}` : ''}`
+              : '—'
+          }
+          valueClass={trade.alpha_pct != null ? pnlColor(trade.alpha_pct) : 'text-gray-500'}
+        />
+      </dl>
+      <div className="flex flex-wrap items-center gap-x-5 gap-y-2 border-t border-white/[0.06] pt-3">
+        <Fact label="position" value={`${trade.shares} shares`} />
+        <Fact
+          label="holding"
           value={
             <>
-              {formatPrice(trade.target)}
+              opened {opened}
-              {exitMode !== 'target' && (
+              {holdText && <span className={maxHoldColor(trade)}> · {holdText}</span>}
-                <span className="ml-1.5 text-[10px] text-gray-500">screening only</span>
-              )}
             </>
           }
         />
-        <Detail label="exit rule" value={exitLabel ?? 'target/stop'} />
+        <Fact label="screening target" value={formatPrice(trade.target)} />
-        {maxHoldText(trade) && (
+        {exitRuleText && <Fact label="exit" value={exitRuleText} />}
-          <Detail
-            label="max hold"
-            value={maxHoldText(trade)}
-            valueClass={maxHoldColor(trade)}
-          />
-        )}
-        <div className="flex items-end">
         <button
           onClick={onClose}
           disabled={closing}
-            className="rounded-md border border-white/[0.1] px-3 py-1.5 text-xs text-gray-300 transition-colors hover:bg-white/[0.06] hover:text-white disabled:opacity-50"
+          className="ml-auto rounded-md border border-white/[0.1] px-3 py-1.5 text-[11px] text-gray-300 transition-colors hover:bg-white/[0.06] hover:text-white disabled:opacity-50"
         >
           Sell at market
         </button>
       </div>
-      </dl>
       {ohlcv.data && (
         <div>
           <p className="num text-[9.5px] uppercase tracking-[0.16em] text-gray-500">
@@ -243,7 +294,6 @@ export function OpenTradesPanel() {
             {rows.map((t) => {
               const p = tradePnl(t);
               const open = expandedId === t.id;
-              const holdText = maxHoldText(t, true);
               return (
                 <li key={t.id}>
                   <div
@@ -257,11 +307,7 @@ export function OpenTradesPanel() {
                       }
                     }}
                     aria-expanded={open}
-                    className={`grid w-full cursor-pointer grid-cols-[110px_1fr_60px_16px] items-center gap-3 rounded-lg px-2 py-2.5 text-left transition-colors hover:bg-white/[0.03] ${
+                    className="grid w-full cursor-pointer grid-cols-[110px_1fr_60px_16px] items-center gap-3 rounded-lg px-2 py-2.5 text-left transition-colors hover:bg-white/[0.03] sm:grid-cols-[130px_150px_1fr_70px_16px]"
-                      hasMaxHold
-                        ? 'sm:grid-cols-[130px_150px_1fr_70px_16px] lg:grid-cols-[130px_150px_1fr_110px_70px_16px]'
-                        : 'sm:grid-cols-[130px_150px_1fr_70px_16px]'
-                    }`}
                   >
                     <span className="flex items-center gap-2">
                       <Link
@@ -276,15 +322,10 @@ export function OpenTradesPanel() {
                     <span className="num hidden text-xs text-gray-400 sm:block">
                       {formatPrice(t.entry_price)} → {t.current_price != null ? formatPrice(t.current_price) : '—'}
                     </span>
+                    <div className={`min-w-0 ${hasMaxHold ? 'space-y-1.5' : ''}`}>
                       <RBar r={p?.r ?? null} max={rMax} />
-                    {hasMaxHold && (
+                      {hasMaxHold && <HoldProgress trade={t} />}
-                      <span
+                    </div>
-                        className={`num hidden text-right text-[11px] lg:block ${maxHoldColor(t)}`}
-                        title="Maximum holding period; the stop may close this trade sooner."
-                      >
-                        {holdText ?? '—'}
-                      </span>
-                    )}
                     <span className={`num text-right text-[13px] font-semibold ${p?.r != null ? pnlColor(p.r) : 'text-gray-500'}`}>
                       {p?.r != null ? `${p.r >= 0 ? '+' : ''}${p.r.toFixed(2)}R` : '—'}
                     </span>
@@ -295,7 +336,6 @@ export function OpenTradesPanel() {
                   {open && (
                     <TradeDetail
                       trade={t}
-                      exitLabel={exitLabel}
                       exitMode={exitMode}
                       atrMultiplier={atrMultiplier}
                       trailingPct={trailingPct}