Show residual bid as price/size and recovery percent from bid premium.

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

control/frontend/src/pages/Monitor.tsx

@@ -85,11 +85,22 @@ type ResidualRow = {
   option_qty_eth: number | null;
   initial_premium: number | null;
   bid_px: number | null;
+  bid_sz_eth: number | null;
   current_premium: number | null;
   recovery_pct: number | null;
   liquidity_ok: boolean;
 };
 
+function fmtBidLiquidity(
+  bidPx: number | null,
+  bidSzEth: number | null,
+): string {
+  if (bidPx == null && bidSzEth == null) return "—";
+  const px = bidPx == null ? "—" : fmtExPx("option", bidPx);
+  const sz = bidSzEth == null ? "—" : fmt(bidSzEth, 2);
+  return `${px} / ${sz}`;
+}
+
 function collectResiduals(nodes: NodeCard[]): ResidualRow[] {
   const out: ResidualRow[] = [];
   for (const n of nodes) {
@@ -115,6 +126,7 @@ function collectResiduals(nodes: NodeCard[]): ResidualRow[] {
         option_qty_eth: numOrNull(r.option_qty_eth),
         initial_premium: numOrNull(r.initial_premium),
         bid_px: numOrNull(r.bid_px),
+        bid_sz_eth: numOrNull(r.bid_sz_eth),
         current_premium: numOrNull(r.current_premium),
         recovery_pct: numOrNull(r.recovery_pct),
         liquidity_ok: r.liquidity_ok === true,
@@ -838,8 +850,9 @@ export default function MonitorPage() {
                   <th>期权名</th>
                   <th>数量</th>
                   <th>开仓权利金</th>
-                  <th>当前买一权利金</th>
-                  <th>回收占比%</th>
+                  <th title="最新买一价格 / 买一数量(ETH)">买一流动性</th>
+                  <th title="买一价 × 持仓数量">买一权利金</th>
+                  <th title="买一权利金 ÷ 开仓权利金">占比</th>
                   <th>操作</th>
                 </tr>
               </thead>
@@ -851,9 +864,21 @@ export default function MonitorPage() {
                     <td className="mono">{r.option_inst_id}</td>
                     <td className="mono">{fmt(r.option_qty_eth, 4)}</td>
                     <td className="mono">{fmt(r.initial_premium, 2)}</td>
+                    <td
+                      className="mono"
+                      title={
+                        r.liquidity_ok
+                          ? "买一深度可覆盖持仓"
+                          : "买一不足或盘口不可用"
+                      }
+                    >
+                      {fmtBidLiquidity(r.bid_px, r.bid_sz_eth)}
+                    </td>
                     <td className="mono">{fmt(r.current_premium, 2)}</td>
                     <td className="mono">
-                      {r.recovery_pct == null ? "—" : fmt(r.recovery_pct, 1)}
+                      {r.recovery_pct == null
+                        ? "—"
+                        : `${fmt(r.recovery_pct, 1)}%`}
                     </td>
                     <td className="col-actions">
                       <button