Show served Space build in runtime panel

app.js

@@ -20,6 +20,7 @@ const elements = {
   runtimeStatus: $("runtimeStatus"),
   runtimeDeviceStatus: $("runtimeDeviceStatus"),
   runtimeDeviceDetail: $("runtimeDeviceDetail"),
+  runtimeBuildStatus: $("runtimeBuildStatus"),
   llmModelSelect: $("llmModelSelect"),
   asrModelSelect: $("asrModelSelect"),
   voiceSelect: $("voiceSelect"),
@@ -415,6 +416,13 @@ async function refreshHostMetadata() {
       fetchedAt: new Date().toISOString(),
     };
   }
+  updateBuildStatus();
+}
+
+function updateBuildStatus() {
+  const commit = state.hostMetadata.hfSpaceCommit;
+  const label = commit ? `Space build ${commit.slice(0, 8)}` : `${location.hostname || "local"} build`;
+  elements.runtimeBuildStatus.textContent = label;
 }
 
 function setLoadButton(mode) {

index.html

@@ -84,6 +84,7 @@
               <span id="runtimeDeviceStatus">Checking runtime</span>
               <small id="runtimeDeviceDetail">Adapter probe pending.</small>
             </div>
+            <div class="build-status" id="runtimeBuildStatus">Build metadata pending.</div>
             <label>
               LLM
               <select id="llmModelSelect">

styles.css

@@ -306,6 +306,13 @@ h2 {
   color: var(--red);
 }
 
+.build-status {
+  min-height: 24px;
+  color: var(--muted);
+  font-size: 12px;
+  overflow-wrap: anywhere;
+}
+
 .range-label {
   display: flex;
   align-items: center;