Align semantic reply with research result

cmd/core-runtime/main.go

@@ -709,6 +709,9 @@ func main() {
 				})
 				cancelResearch()
 				planningReply, researchBacked = renderResearchReply(result, researchErr)
+				if researchBacked {
+					semantic.Reply = planningReply
+				}
 				// A failed source must not turn the complete conversation into a
 				// runtime failure or invite an unsupported local guess for a fact.
 				needsCognition = false