fix(live): remount strategy detail when switching focused strategy

Keying LiveStrategyDetail by strategy name resets its child state (trade-log
pagination), so switching strategies no longer keeps the previous page index.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

web/src/client/LivePage.tsx

@@ -176,7 +176,7 @@ export function LivePage() {
 
         <section className="liveDetail">
           {focused ? (
-            <LiveStrategyDetail strategy={focused} />
+            <LiveStrategyDetail key={focused.name} strategy={focused} />
           ) : (
             <div className="panel emptyState">
               <Wallet size={40} />

web/src/client/styles.css

@@ -2227,6 +2227,7 @@ input:focus {
 .liveListMeta {
   display: flex;
   justify-content: space-between;
+  gap: 8px;
   font-size: 10px;
   color: #6f7c8f;
   font-weight: 700;