fix(rectification): invite-first collect, holdout at 4 events, Skill 10.0.23 (BUG-646–648)

Stop domain-wheel collecting and age-band years in prompts. Ask until the training gate, then discriminate until convergence, then deliver a range plus a concrete follow-up. Reserve holdout only with four dated events.

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

frontend/src/lib/rectification-surface-state.ts

@@ -29,6 +29,7 @@ export const RECTIFICATION_QUESTION_RETRY_INTERVAL_MS = 2_000;
 
 export const RECTIFICATION_QUESTION_PREPARING_LABEL = "正在准备下一个问题…";
 export const RECTIFICATION_QUESTION_UNAVAILABLE_COPY = "没有拿到下一个问题。";
+export const RECTIFICATION_COLLECT_WAITING_PLACEHOLDER = "再说一件带年月的事";
 export const RECTIFICATION_QUESTION_RELOAD_LABEL = "接着问";
 export const RECTIFICATION_QUESTION_REPAIR_FAILED_COPY = "暂时接不上，请新建一次校正。";
 export const RECTIFICATION_QUESTION_REPAIR_LIMIT = 2;
@@ -63,6 +64,11 @@ export type RectificationCaseSnapshotPayload = Readonly<{
   step_state?: unknown;
   question_source?: unknown;
   next_user_action?: Readonly<{ id?: unknown }>;
+  interview?: Readonly<{
+    stop_reason?: unknown;
+    session_outcome?: unknown;
+    type?: unknown;
+  }>;
   case?: Readonly<{
     status?: unknown;
     accepted_time?: unknown;
@@ -262,7 +268,8 @@ export type RectificationQuestionGapState =
   | "preparing"
   | "unavailable"
   | "verified_idle"
-  | "persisted_question";
+  | "persisted_question"
+  | "collect_waiting";
 
 export type RectificationQuestionGapInput = Readonly<{
   /** The current question is rendered live inside an assistant message. */
@@ -280,6 +287,8 @@ export type RectificationQuestionGapInput = Readonly<{
    * settled assistant message carries it yet.
    */
   questionPersisted?: boolean;
+  /** Training gate still closed; pool empty; keep the case open for another dated event. */
+  collectWaiting?: boolean;
   busy: boolean;
   readonly: boolean;
   regenerating: boolean;
@@ -304,6 +313,7 @@ export function rectificationQuestionGapState(input: RectificationQuestionGapInp
   if (!input.snapshotLoaded) return retryGate;
   if (!input.resumableCase) return "idle";
   if (input.liveQuestionVisible || input.offerAwaitingReader) return "idle";
+  if (input.collectWaiting) return "collect_waiting";
   if (input.questionPersisted) return "persisted_question";
   if (input.nextUserActionId === "start_consultation") return "verified_idle";
   if (input.questionLoadFailed) return "unavailable";
@@ -317,6 +327,39 @@ export function rectificationQuestionRetryActive(state: RectificationQuestionGap
   return state === "preparing";
 }
 
+export function interviewStopReasonFromSnapshot(payload: RectificationCaseSnapshotPayload | null): string | null {
+  if (!payload) return null;
+  const interviewReason = payload.interview?.stop_reason;
+  if (typeof interviewReason === "string" && interviewReason.trim()) return interviewReason.trim();
+  const latest = payload.latest_result;
+  if (latest && typeof latest === "object" && !Array.isArray(latest)) {
+    const reason = (latest as { evidence_stop_reason?: unknown; stop_reason?: unknown }).evidence_stop_reason
+      ?? (latest as { stop_reason?: unknown }).stop_reason;
+    if (typeof reason === "string" && reason.trim()) return reason.trim();
+  }
+  return null;
+}
+
+export function interviewSessionOutcomeFromSnapshot(payload: RectificationCaseSnapshotPayload | null): string | null {
+  if (!payload) return null;
+  const interviewOutcome = payload.interview?.session_outcome;
+  if (typeof interviewOutcome === "string" && interviewOutcome.trim()) return interviewOutcome.trim();
+  return null;
+}
+
+export function interviewCollectWaiting(input: Readonly<{
+  stopReason?: string | null;
+  sessionOutcome?: string | null;
+  questionMissing: boolean;
+  offeringCards?: boolean;
+}>): boolean {
+  if (!input.questionMissing || input.offeringCards) return false;
+  if (input.sessionOutcome && input.sessionOutcome !== "collect_evidence") return false;
+  return input.stopReason === "insufficient_dated_events"
+    || input.stopReason === "insufficient_domains"
+    || input.stopReason === "insufficient_events";
+}
+
 function probeHasYear(value: unknown): boolean {
   if (!value || typeof value !== "object" || Array.isArray(value)) return false;
   const year = (value as { year?: unknown }).year;