fix(rectification): ask reverse-inference probes at engine dasha months

Keep Vimshottari/Narayana start dates instead of truncating to year, so
same-year month splits can appear on the choice card.

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

frontend/src/lib/rectification-agentic/core/candidate-contrast-packet.ts

@@ -729,7 +729,7 @@ function remainingQuestion(
   layer: string,
   layerLabel: string,
 ): string {
-  return `引擎给出的区分机会绑定 ${layerLabel}。按 Opportunity 的年份、领域和 expected_outcomes 改写成自然语言，不得发明年份、事件事实或候选映射。`;
+  return `引擎给出的区分机会绑定 ${layerLabel}。按 Opportunity 的时间范围、领域和 expected_outcomes 改写成自然语言，不得发明年份、事件事实或候选映射，不得改写时间范围。`;
 }
 
 function remainingOutcomes(

frontend/src/lib/rectification-agentic/v9/method-followup.ts

@@ -113,6 +113,8 @@ export type MethodFollowup = Readonly<{
   semantic_key?: string;
   candidate_split_hash?: string;
   probe_year?: number;
+  year_label?: string;
+  probe_month?: number;
   choice_kind?: "existence" | "varga_style" | "event_quality";
   candidate_ids?: readonly string[];
   expected_outcomes?: DiscriminatingEventProbe["expected_outcomes"];
@@ -497,7 +499,13 @@ function followupOwnedProbe(
   if (styleOptions.length !== 4) return null;
   return {
     year: item.probe_year ?? 0,
-    year_label: item.probe_year ? `${item.probe_year} 年前后` : "当前这几个候选",
+    year_label: item.year_label
+      ?? (item.probe_year && item.probe_month
+        ? `${item.probe_year} 年 ${item.probe_month} 月前后`
+        : item.probe_year
+          ? `${item.probe_year} 年前后`
+          : "当前这几个候选"),
+    ...(item.probe_month ? { month: item.probe_month } : {}),
     domain: item.domain as EventProbeDomain,
     event_family: followupEventFamily(item.domain, kind),
     source: "dasha_activation",
@@ -579,7 +587,7 @@ function agentHint(
   extra = "",
   evidence: readonly MethodFollowupEvidence[] = [],
 ): string {
-  return `${why}本题绑定 ${varga}。${extra}${recordedKindYearHint(evidence)}点选卡只出 A/B/C/D。用简体中文自己写一句追问；年份和事件家族以 choice_frame.period 与探针为准，不得发明年份，不得改问其他领域，不得把探针年份说成已经发生的事实。不要调用 set-focus。正文不要复述选项。`.replace(/\s+/g, " ").trim();
+  return `${why}本题绑定 ${varga}。${extra}${recordedKindYearHint(evidence)}点选卡只出 A/B/C/D。用简体中文自己写一句追问；时间范围和事件家族以 choice_frame.period 与探针为准，不得发明年份，不得改写时间范围，不得改问其他领域，不得把探针时间说成已经发生的事实。不要调用 set-focus。正文不要复述选项。`.replace(/\s+/g, " ").trim();
 }
 
 export function shouldAttachChoiceFrame(
@@ -995,6 +1003,8 @@ export function buildMethodFollowupPlan(input: {
             semantic_key: liveProbe.semantic_key,
             candidate_split_hash: liveProbe.candidate_split_hash,
             probe_year: liveProbe.year,
+            year_label: liveProbe.year_label,
+            probe_month: liveProbe.month,
             choice_kind: liveProbe.choice_kind,
             candidate_ids: liveProbe.candidate_ids ?? candidateIdsFromProbe(liveProbe),
             expected_outcomes: liveProbe.expected_outcomes,
@@ -1093,6 +1103,8 @@ export function buildMethodFollowupPlan(input: {
         semantic_key: conflictProbe.semantic_key ?? `${conflictProbe.domain}.${conflictProbe.year}`,
         candidate_split_hash: conflictProbe.candidate_split_hash,
         probe_year: conflictProbe.year,
+        year_label: conflictProbe.year_label,
+        probe_month: conflictProbe.month,
         choice_kind: conflictProbe.choice_kind ?? "existence",
         candidate_ids: conflictProbe.candidate_ids ?? candidateIdsFromProbe(conflictProbe),
         expected_outcomes: conflictProbe.expected_outcomes,

frontend/src/lib/rectification-agentic/v9/refinement-packet.ts

@@ -205,6 +205,7 @@ export type ProbeExpectedOutcome = Readonly<{
 export type DiscriminatingEventProbe = Readonly<{
   year: number;
   year_label: string;
+  month?: number;
   domain: EventProbeDomain;
   event_family: string;
   source: EventProbeSource;
@@ -511,6 +512,9 @@ export function parseEventProbes(
     const family = asText(row?.event_family, 80);
     const meaning = asText(row?.user_meaning, 160);
     const label = asText(row?.year_label, 40);
+    const month = typeof row?.month === "number" && Number.isInteger(row.month) && row.month >= 1 && row.month <= 12
+      ? row.month
+      : null;
     if (
       !row
       || year === null
@@ -536,6 +540,7 @@ export function parseEventProbes(
     const probe: DiscriminatingEventProbe = {
       year,
       year_label: label,
+      ...(month ? { month } : {}),
       domain: domain as EventProbeDomain,
       event_family: family,
       source: source as EventProbeSource,