Add service test buttons (build 271261335)

frontend/app/globals.css

@@ -1415,6 +1415,24 @@ button span {
   font-size: 13px;
 }
 
+.system-meta {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.system-test-message {
+  font-size: 11px;
+  color: var(--ink-muted);
+}
+
+.system-actions {
+  margin-left: auto;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
 .system-dot {
   width: 10px;
   height: 10px;
@@ -1444,10 +1462,28 @@ button span {
 }
 
 .system-state {
-  margin-left: auto;
   color: var(--ink-muted);
 }
 
+.system-test {
+  padding: 4px 10px;
+  border-radius: 999px;
+  border: 1px solid var(--border);
+  background: rgba(255, 255, 255, 0.08);
+  color: var(--ink-muted);
+  font-size: 11px;
+  letter-spacing: 0.02em;
+}
+
+.system-test:hover:not(:disabled) {
+  background: rgba(255, 255, 255, 0.16);
+}
+
+.system-test:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
 .pipeline-map {
   border-radius: 16px;
   border: 1px solid var(--border);