fix(rectification): stop the opening body from repeating the collect prompt

Persist the interview slot before the opening turn, keep the stem in the question slot, and hide that slot while a run is busy so the same ask does not appear twice.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/app/api/rectification/agent/route.ts

@@ -662,6 +662,19 @@ export async function POST(request: Request) {
       };
 
       try {
+        if (action === "opening") {
+          try {
+            await persistNextInterviewIfIdle({
+              accounting: accounting as never,
+              userId,
+              caseId,
+            });
+          } catch (error) {
+            console.warn(
+              `[rectification-v9] persist opening interview failed case=${caseId} reason=${error instanceof Error ? error.name : "Unknown"}`,
+            );
+          }
+        }
         const result = await runV9AgentTurn({
           userId,
           caseId,