Track client operations and show inline progress

src/web/styles.css

@@ -1944,6 +1944,24 @@ p {
   outline-offset: 2px;
 }
 
+.client-operation-progress {
+  color: var(--client-accent);
+}
+
+.client-operation-progress::before {
+  width: 6px;
+  height: 6px;
+  border-radius: 50%;
+  background: currentColor;
+  box-shadow: 0 0 8px currentColor;
+  content: '';
+  animation: client-operation-pulse 900ms ease-in-out infinite alternate;
+}
+
+@keyframes client-operation-pulse {
+  to { opacity: 0.35; transform: scale(0.72); }
+}
+
 .client-copy-button {
   position: relative;
   width: 86px;
@@ -2092,6 +2110,7 @@ p {
 }
 
 @media (prefers-reduced-motion: reduce) {
+  .client-operation-progress::before,
   .client-power,
   .client-power::before,
   .client-power::after,