fix: harden reviewer workflow and memory handling

frontend/src/widgets/MultiselectWidget.tsx

@@ -1,4 +1,6 @@
 import { useState } from "react";
+import ReactMarkdown from "react-markdown";
+import remarkGfm from "remark-gfm";
 import type { WidgetProps } from "./types";
 import { ReservedControls } from "./ReservedControls";
 
@@ -56,7 +58,24 @@ export function MultiselectWidget({ descriptor, onRespond }: WidgetProps) {
                 checked={checked.has(o.id)}
                 onChange={() => toggle(o.id)}
               />
-              <span>{o.label}</span>
+              <span className="min-w-0 flex-1">
+                <span className="block font-medium">{o.label}</span>
+                {o.detail && (
+                  <div className="thot-prose mt-1 text-sm text-muted-foreground">
+                    <ReactMarkdown remarkPlugins={[remarkGfm]}>{o.detail}</ReactMarkdown>
+                  </div>
+                )}
+                {o.rationale && (
+                  <span className="mt-1 block text-xs text-foreground/80">
+                    Motivo: {o.rationale}
+                  </span>
+                )}
+                {typeof o.meta?.question_context === "string" && o.meta.question_context && (
+                  <span className="mt-1 block text-xs text-muted-foreground">
+                    Domanda di contesto: {o.meta.question_context}
+                  </span>
+                )}
+              </span>
             </label>
           ))}
         </div>