Measure semantic activation refresh independently from download and idle time

apps/desktop/src/main.ts

@@ -30,7 +30,11 @@ import {
   spanDepth,
   briefMs,
 } from "./search-performance";
-import type { MeasuredResponse, SearchLane } from "./search-performance";
+import type {
+  MeasuredResponse,
+  SearchLane,
+  SearchRefreshTrigger,
+} from "./search-performance";
 import { displayPath } from "./path-display";
 import { ResultSelection } from "./selection-state";
 import {
@@ -449,7 +453,7 @@ async function refreshSemanticStatus() {
       canSearchSemantically() &&
       latestSearch?.id === requestId
     )
-      submitSearch(latestSearch, "hybrid");
+      refreshIndexedSearch("semantic_activation");
     if (working || (!status.ready && !error)) queueSemanticRefresh();
   } catch (error) {
     element("semantic-status").textContent =
@@ -1088,7 +1092,22 @@ function submitSearch(request: SearchRequest, lane: SearchLane) {
   (lane === "lexical" ? lexicalLane : hybridLane).submit(request);
 }
 
-function refreshIndexedSearch() {
+function searchMeasurementContext() {
+  return {
+    model: semanticStatus?.worker_info?.model ?? null,
+    device: semanticStatus?.worker_info?.device ?? null,
+    runtime: semanticStatus?.worker_info?.runtime ?? null,
+    threads: semanticStatus?.worker_info?.threads ?? null,
+    dimensions: semanticStatus?.worker_info?.dimensions ?? null,
+    semantic_ready: canSearchSemantically(),
+    semantic_generation: semanticStatus?.generation ?? null,
+    indexed_chunks: semanticStatus?.chunks ?? null,
+  };
+}
+
+function refreshIndexedSearch(
+  trigger: SearchRefreshTrigger = "filesystem_refresh",
+) {
   const previous = latestSearch;
   if (
     !previous ||
@@ -1106,7 +1125,11 @@ function refreshIndexedSearch() {
     ...previous,
     id: ++requestId,
     started: refreshStarted,
-    measurement: previous.measurement.freshForRefresh(refreshStarted),
+    measurement: previous.measurement.freshForRefresh(
+      refreshStarted,
+      trigger,
+      searchMeasurementContext(),
+    ),
   };
   latestSearch = refreshed;
   submitSearch(refreshed, "lexical");
@@ -1188,15 +1211,7 @@ async function search(inputAt = performance.now()) {
         inputAt,
         performance.now(),
         element<HTMLInputElement>("performance-toggle").checked,
-        {
-          model: semanticStatus?.worker_info?.model ?? null,
-          device: semanticStatus?.worker_info?.device ?? null,
-          runtime: semanticStatus?.worker_info?.runtime ?? null,
-          threads: semanticStatus?.worker_info?.threads ?? null,
-          dimensions: semanticStatus?.worker_info?.dimensions ?? null,
-          semantic_ready: canSearchSemantically(),
-          indexed_chunks: semanticStatus?.chunks ?? null,
-        },
+        searchMeasurementContext(),
       ),
     };
     latestSearch = request;