fix(rectification): hide option hover impact and composer step strip (BUG-575)

Hovering A/B/C/D rewrote a leading/lagging time line and made the card flicker; the step-state sentence above the composer was instructional filler, not something the user needed to answer.

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

frontend/src/components/rectification-agentic-chat.tsx

@@ -37,10 +37,8 @@ import {
   isRecommendedRectificationCandidate,
   natalRecastMeaning,
   parseRectificationCandidateResult,
-  parseRectificationStepState,
   workingRectificationHouseTable,
   type RectificationCandidateResult,
-  type RectificationStepState,
 } from "@/lib/rectification-candidate-result";
 import {
   diffRectificationBoard,
@@ -435,7 +433,6 @@ type CaseSnapshotState = Readonly<{
   question: CurrentQuestionModel | null;
   questionSource: "focus" | "unavailable" | null;
   choice: ChoiceCardModel | null;
-  stepState: RectificationStepState | null;
   caseStatus: RectificationCaseStatus | null;
   savedTime: string | null;
   savedStatus: "accepted" | "confirmed" | null;
@@ -457,7 +454,6 @@ function caseSnapshotState(payload: RectificationCaseSnapshotPayload | null): Ca
     question: currentQuestionFromSnapshot(payload.current_question),
     questionSource: questionSourceFromSnapshot(payload.question_source),
     choice: parseRectificationChoiceCard(payload.choice_card),
-    stepState: parseRectificationStepState(payload.step_state),
     caseStatus: isRectificationCaseStatus(payload.case?.status) ? payload.case.status : null,
     savedTime: confirmedTime ?? acceptedTime,
     savedStatus: confirmedTime ? "confirmed" : acceptedTime ? "accepted" : null,
@@ -499,7 +495,6 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
   const [savedStatus, setSavedStatus] = useState<"accepted" | "confirmed" | null>(() => caseSnapshotState(initialSnapshot)?.savedStatus ?? null);
   const [candidateResult, setCandidateResult] = useState<CandidateResult>(() => caseSnapshotState(initialSnapshot)?.candidate ?? null);
   const [choiceCard, setChoiceCard] = useState<ChoiceCardModel | null>(() => caseSnapshotState(initialSnapshot)?.choice ?? null);
-  const [stepState, setStepState] = useState<RectificationStepState | null>(() => caseSnapshotState(initialSnapshot)?.stepState ?? null);
   const [currentQuestion, setCurrentQuestion] = useState<CurrentQuestionModel | null>(() => caseSnapshotState(initialSnapshot)?.question ?? null);
   const [questionSource, setQuestionSource] = useState<"focus" | "unavailable" | null>(() => caseSnapshotState(initialSnapshot)?.questionSource ?? null);
   const [caseStatus, setCaseStatus] = useState<RectificationCaseStatus | null>(() => caseSnapshotState(initialSnapshot)?.caseStatus ?? null);
@@ -672,7 +667,6 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
     setCurrentQuestion(nextQuestion);
     setQuestionSource(questionSourceFromSnapshot(payload.question_source));
     setChoiceCard(nextChoice);
-    setStepState(parseRectificationStepState(payload.step_state));
     setCaseStatus(nextCaseStatus);
     setNextUserActionId(nextActionId || null);
     setCaseSnapshotLoaded(true);
@@ -1772,13 +1766,8 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
               <span className="rectification-adopt-status__hint">之后新建对话即按此时间排盘。</span>
             </div>
           )}
-          <div className="rectification-composer-meta">
-            {stepState ? (
-              <p className="rectification-step-state" role="status">
-                {stepState.headline} — {stepState.reason} — 下一步：{stepState.next}
-              </p>
-            ) : null}
-            {currentQuestion?.kind === "collect_spoken" && !readonly && !busy && (
+          {currentQuestion?.kind === "collect_spoken" && !readonly && !busy && (
+            <div className="rectification-composer-meta">
               <button
                 type="button"
                 className="rectification-collect-stop"
@@ -1786,8 +1775,8 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
               >
                 {CHOICE_STOP_LABEL}
               </button>
-            )}
-          </div>
+            </div>
+          )}
           <ChatComposer
             inputRef={composer}
             value={draft}