update refine prompt

prompts/private/refine.txt

@@ -1,6 +1,7 @@
 <role>You are an expert system designer</role>
 <task>
 Your task is to refine an idea to account for the given insights. 
+Only refine the idea itself, do not add tracking todo list items. They will be handled on the side.
 </task>
 
 <idea>

static/js/gen.js

@@ -187,6 +187,7 @@ export async function getModelList(providerUrl, apiKey) {
 
 // # ========================================================================================== Idea assessment logic ==================================================================
 
+// keep in sync with contents of "extract" prompt
 const StructuredAssessmentOutput = zod.object({
     final_verdict: zod.string(),
     summary: zod.string(),