feat(confidence-engine): correlate focused result with contribution

components/reasoning-workspace.jsx

@@ -1449,6 +1449,8 @@ export default function ReasoningWorkspace({
 
     setProcessingStep("active");
 
+    const correlationId = crypto.randomUUID();
+
     try {
       const url = "/api/focused-investigation/deconstruct";
 
@@ -1481,6 +1483,7 @@ export default function ReasoningWorkspace({
         assumptions: data.assumptions,
         relationships: data.relationships,
         possibleFollowUpQuestions: data.possibleFollowUpQuestions,
+        correlationId,
       });
 
       setProcessingStep("idle");
@@ -1492,7 +1495,7 @@ export default function ReasoningWorkspace({
 
       setFocusedInvestigations((prev) => ({
         ...prev,
-        [targetNodeId]: { ...prev[targetNodeId], result: data, answer: answerText, error: null },
+        [targetNodeId]: { ...prev[targetNodeId], result: { ...data, correlationId }, answer: answerText, error: null },
       }));
     } catch (err) {
       setProcessingStep("idle");