fix(mindspace): use UUIDs for repair replies

mindspace-page-data-finish-guard.mjs

@@ -646,7 +646,9 @@ export async function maybeRepairPageDataAfterFinish({
   repairAttemptsBySession.set(key, attempts + 1);
 
   const prompt = buildPageDataCollectRepairPrompt(afterBind);
-  const requestId = `page-data-repair-${crypto.randomUUID()}`;
+  // goosed validates request_id as a UUID. Keep the repair classification in
+  // message metadata rather than making the request id non-conformant.
+  const requestId = crypto.randomUUID();
   const userMessage = {
     role: 'user',
     content: [{ type: 'text', text: prompt }],