Align instance dashboard with snapshot+SSE and options net PnL.

Only dashboard path changes: background snapshot, SSE refresh, smaller header type, options net PnL.

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

lib/common/static/instance_page.css

@@ -34,7 +34,7 @@
         .order-preview-rr.order-preview-rr-ok strong{color:#8fc8ff}
         .form-row > button,.form-row > label{flex:0 0 auto}
         .form-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
-        /* 复盘表单:长下拉文案需可收缩,否则会撑破四列网格 */
+        /* �盘表�:长下拉文案需�收��则会撑破四列网�*/
         .journal-card .form-grid{gap:10px}
         .journal-card .form-grid > input,
         .journal-card .form-grid > select{
@@ -270,10 +270,12 @@
 #embed-page-root{min-height:120px;position:relative}
 .embed-tab-pane[hidden]{display:none!important}
 .inst-dash-card{grid-column:1/-1}
-.inst-dash-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:8px}
-.inst-dash-desc{margin:0;font-size:.82rem}
-.inst-dash-head-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
-.inst-dash-status{min-height:1.2em;margin:0 0 10px}
+.inst-dash-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:6px}
+.inst-dash-card > .inst-dash-head h2{font-size:.88rem;margin:0 0 2px;font-weight:600}
+.inst-dash-desc{margin:0;font-size:.72rem;line-height:1.35}
+.inst-dash-head-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
+.inst-dash-updated{font-size:.72rem}
+.inst-dash-status{min-height:1.1em;margin:0 0 8px;font-size:.72rem}
 .inst-dash-sections{display:flex;flex-direction:column;gap:14px}
 .inst-dash-section{padding:12px;background:#141923;border:1px solid #2a3150;border-radius:10px}
 .inst-dash-section-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}