feat: align Agent Instance with mock — JVM charts, process info, stat cards, log placeholder

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/pages/AgentInstance/AgentInstance.module.css

@@ -1,6 +1,6 @@
 .statStrip {
   display: grid;
-  grid-template-columns: repeat(4, 1fr);
+  grid-template-columns: repeat(5, 1fr);
   gap: 10px;
   margin-bottom: 16px;
 }
@@ -26,7 +26,7 @@
 
 .chartsGrid {
   display: grid;
-  grid-template-columns: 1fr 1fr;
+  grid-template-columns: repeat(3, 1fr);
   gap: 14px;
   margin-bottom: 20px;
 }
@@ -84,9 +84,35 @@
 }
 
 .infoCard {
-  background: var(--bg-surface);
-  border: 1px solid var(--border-subtle);
-  border-radius: var(--radius-lg);
-  box-shadow: var(--shadow-card);
-  padding: 16px;
+  margin-bottom: 20px;
+}
+
+.infoGrid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 8px 16px;
+  font-size: 13px;
+}
+
+.infoLabel {
+  font-weight: 700;
+  font-size: 10px;
+  text-transform: uppercase;
+  letter-spacing: 0.6px;
+  color: var(--text-muted);
+  display: block;
+  margin-bottom: 2px;
+}
+
+.capTags {
+  display: flex;
+  gap: 4px;
+  flex-wrap: wrap;
+}
+
+.paneTitle {
+  font-size: 13px;
+  font-weight: 700;
+  color: var(--text-primary);
+  margin-bottom: 12px;
 }