P1c: microphone recording through the material pipeline

ui/src/app.css

@@ -1167,6 +1167,71 @@ button.room {
   cursor: wait;
 }
 
+.record {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 7px 10px;
+  border: 1px solid rgba(155, 133, 121, 0.28);
+  background: transparent;
+  color: var(--bone);
+  font-size: 9.5px;
+  letter-spacing: 0.03em;
+  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
+}
+
+.record:hover:not(:disabled) {
+  border-color: var(--ember);
+}
+
+.record.is-on {
+  border-color: var(--ember);
+  background: rgba(232, 64, 42, 0.06);
+  color: var(--ember);
+}
+
+.record:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.record-dot {
+  width: 5px;
+  height: 5px;
+  border-radius: 50%;
+  background: var(--ember);
+}
+
+.record.is-on .record-dot {
+  animation: pulse-dot 1.1s ease-in-out infinite;
+}
+
+@keyframes pulse-dot {
+  0%,
+  100% {
+    opacity: 1;
+    box-shadow: 0 0 0 0 rgba(232, 64, 42, 0.5);
+  }
+  50% {
+    opacity: 0.4;
+    box-shadow: 0 0 0 4px rgba(232, 64, 42, 0);
+  }
+}
+
+.record-error {
+  margin: 8px 0 0;
+  font-size: 9px;
+  line-height: 1.6;
+  color: var(--ember);
+}
+
+.empty-actions {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: center;
+  gap: 10px;
+}
+
 .file {
   position: absolute;
   width: 1px;
@@ -1795,12 +1860,21 @@ button.room {
   .quarry-head h1 {
     font-size: 26px;
   }
+  .quarry-head {
+    flex-wrap: wrap;
+  }
   .quarry-actions {
+    width: 100%;
+    justify-content: flex-end;
     gap: 6px;
   }
   .import-state {
     display: none;
   }
+  .record {
+    padding: 6px 8px;
+    font-size: 8.5px;
+  }
   .face-wall {
     grid-template-columns: repeat(4, minmax(0, 1fr));
   }