feat(rectification): 少问几道就出卡，交付卡以范围为主（D1–D4）

- D1 引导窗口题每个校正最多 2 道（前端 GUIDED_WINDOW_CASE_LIMIT；引擎
  GUIDED_COLLECT_LIMIT 未动：event_probes.py 属冻结评分身份，改它需重新冻结）
- D2 七条定向线与跳过线重问问完即出卡，没问到的引导窗口不再挡卡，出卡后也不再挂窗口题
- D3 卡头加副标题「最可能 HH:MM」
- D4 前两列相差 ≥5 个百分点才显示相对可能性，否则一句「这几个时刻目前区分不开……」
- 离线回放 scripts/research/fewer_probes_card_replay.py：真值不降、宽度中位 ±1 分钟、提问 11.4→7.8
- Skill 10.0.29 → 10.0.30；DESIGN / VOICE / CHANGELOG / PROGRESS / 真机清单

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eEAG8HD3mm8gsKXgk8uU8

frontend/src/lib/rectification-agentic/core/rectification-decision.ts

@@ -239,7 +239,12 @@ export type DecideRectificationInput = Readonly<{
   targetedCollectExhausted?: boolean;
   /** D1: width ≤ 10, top-two display gap > 3, not an exact first-place tie. */
   precisionGateMet?: boolean;
-  /** Guided window / skip-retry / uncovered-domain pool is empty. */
+  /**
+   * The lines that may hold the card are asked out: skip-retry and the
+   * targeted seven (production also requires the engine refresh). Since D2
+   * (2026-09-26) unasked guided boundary windows are not part of this — see
+   * `cardHoldingLinesExhausted`.
+   */
   guidedCollectExhausted?: boolean;
   /** Opening search window from `case.candidateRange`. Omit in helper/unit paths. */
   openingCandidateRange?: readonly [string, string] | null;
@@ -660,8 +665,11 @@ function stillNeedNarrowing(input: DecideRectificationInput): boolean {
 /**
  * D2 + D6. The precision gate only holds the card back **while there is still
  * a question to ask**: delivery is `userStopped || everyLineAsked`, where
- * `everyLineAsked` is the guided pool (windows + skip retry + uncovered
- * domains), the engine refresh, and the targeted seven. Once all of them are
+ * `everyLineAsked` is the skip retry, the engine refresh, and the targeted
+ * seven. Product 2026-09-26 D2: guided boundary windows (at most two per
+ * Case, `GUIDED_WINDOW_CASE_LIMIT`) are asked when they come up, but no longer hold the card — once
+ * the targeted seven and their one re-ask are asked the card goes out with
+ * the gate unmet. Once all of them are
  * asked out there is nothing left to collect, so the reader gets the card
  * under the existing rules whether or not D1 is met — D2 says the card, the
  * adopt button, and the three body lines do not change, and carry no