test(experiment): checkpoint focused vs global comparison apparatus

tests/graph/live-update-experiment-helper.cjs

@@ -64,7 +64,25 @@ async function runLiveExperiment({ graph, previousQuestion, answer }) {
     "../../lib/graph/orchestrator.js"
   );
 
-  const result = await updateCase({ situationGraph: graph, previousQuestion, answer });
+  const { getProvider } = await import("../../lib/llm/provider.js");
+  const provider = getProvider();
+  let modelElapsedMs = null;
+
+  const timedProvider = {
+    async generateReconstruction(prompt, modelName) {
+      const startedAt = Date.now();
+      const response = await provider.generateReconstruction(prompt, modelName);
+      modelElapsedMs = Date.now() - startedAt;
+      return response;
+    },
+  };
+
+  const endToEndStartedAt = Date.now();
+  const result = await updateCase(
+    { situationGraph: graph, previousQuestion, answer },
+    { provider: timedProvider },
+  );
+  const endToEndElapsedMs = Date.now() - endToEndStartedAt;
 
   // Extract the standard checkpoints
   const answerMeaning  = result?.proposal?.answerMeaning || {};
@@ -72,6 +90,9 @@ async function runLiveExperiment({ graph, previousQuestion, answer }) {
   const supportedCat   = _deriveCategory(answerMeaning.userSupportedMeaning || "");
 
   return {
+    modelElapsedMs,
+    endToEndElapsedMs,
+    modelName: model,
     userSupportedMeaning: answerMeaning.userSupportedMeaning ?? null,
     possibleInference:    answerMeaning.possibleInference    ?? null,
     rawAnswerCategory:    rawAnswerCat,