前端文案挑选页按 A/B/C 三套分组展示

- 后端 _fmt_text 返回 strategy 字段,SSE 与 hydrate 两条路径贯通
- 新建 TextStrategyGroup 组件 + groupByStrategy(A/B/C/未分套排序,旧 NULL 数据归未分套)
- text 页平铺改分组渲染,选中态/改稿回调透传不变
- 复用 ImageStrategyGroup 的 STRATEGY_LABEL,单向依赖无环

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/app/tasks/[id]/text/page.tsx

@@ -4,7 +4,8 @@ import { useEffect } from 'react';
 import { useRouter, useParams } from 'next/navigation';
 import { ProgressBar } from '@/components/layout/ProgressBar';
 import { FlywheelBannerFromSse } from '@/components/FlywheelBanner';
-import { TextCandidateCard, TextCandidateCardSkeleton } from '@/components/tasks/TextCandidateCard';
+import { TextCandidateCardSkeleton } from '@/components/tasks/TextCandidateCard';
+import { TextStrategyGroup, groupByStrategy } from '@/components/tasks/TextStrategyGroup';
 import { SseStatusBar } from '@/components/tasks/SseStatusBar';
 import { FatalErrorBanner } from '@/components/tasks/FatalErrorBanner';
 import { RejectReasonBanner } from '@/components/tasks/RejectReasonBanner';
@@ -73,20 +74,23 @@ export default function TextSelectionPage() {
           </div>
         )}
 
-        {/* 文案卡网格（谁好谁先冒） */}
-        <div className="grid grid-cols-2 xl:grid-cols-3 gap-4">
-          {showSkeleton
-            ? Array.from({ length: 4 }).map((_, i) => <TextCandidateCardSkeleton key={i} />)
-            : textCandidates.map((c) => (
-                <TextCandidateCard
-                  key={c.candidate_id}
-                  candidate={c}
-                  selected={selectedTextIds.includes(c.candidate_id)}
-                  onToggle={toggleTextSelection}
-                  onSaveEdit={handleSaveEdit}
-                />
-              ))}
-        </div>
+        {/* 文案卡：按 A/B/C 三套分组展示（让运营一眼看出三套不同角度）；生成中显示骨架 */}
+        {showSkeleton ? (
+          <div className="grid grid-cols-2 xl:grid-cols-3 gap-4">
+            {Array.from({ length: 4 }).map((_, i) => <TextCandidateCardSkeleton key={i} />)}
+          </div>
+        ) : (
+          groupByStrategy(textCandidates).map(([strategy, list]) => (
+            <TextStrategyGroup
+              key={strategy}
+              strategy={strategy}
+              candidates={list}
+              selectedTextIds={selectedTextIds}
+              onToggle={toggleTextSelection}
+              onSaveEdit={handleSaveEdit}
+            />
+          ))
+        )}
 
         {/* 底部操作栏 */}
         {textCandidates.length > 0 && (

frontend/src/components/tasks/TextStrategyGroup.tsx

@@ -0,0 +1,62 @@
+'use client';
+/**
+ * TextStrategyGroup — 文案按"套"(A/B/C)分组展示
+ * A8（倩倩姐2026-06-18拍板"按三套分组展示"）：让运营一眼看出三套不同角度，
+ * 与图片侧 ImageStrategyGroup 同轴(套1痛点/套2场景/套3成分背书)，复用 STRATEGY_LABEL。
+ * 无 strategy 的旧数据归入"未分套"组，向后兼容不丢卡。
+ */
+import { TextCandidate } from '@/types/index';
+import { TextCandidateCard } from './TextCandidateCard';
+import { STRATEGY_LABEL } from './ImageStrategyGroup';
+
+interface TextStrategyGroupProps {
+  strategy: string;                 // 'A'|'B'|'C'|'_'(未分套)
+  candidates: TextCandidate[];
+  selectedTextIds: number[];
+  onToggle: (id: number) => void;
+  onSaveEdit?: (id: number, content: string) => Promise<void>;
+}
+
+export function TextStrategyGroup({
+  strategy, candidates, selectedTextIds, onToggle, onSaveEdit,
+}: TextStrategyGroupProps) {
+  const label = strategy === '_' ? '未分套' : (STRATEGY_LABEL[strategy] || `套${strategy}`);
+  return (
+    <section className="mb-6">
+      <h3 className="mb-3 flex items-center text-sm font-semibold text-text-primary">
+        {label}
+        <span className="ml-2 text-xs font-normal text-text-tertiary">
+          {candidates.length} 条
+        </span>
+      </h3>
+      <div className="grid grid-cols-2 xl:grid-cols-3 gap-4">
+        {candidates.map((c) => (
+          <TextCandidateCard
+            key={c.candidate_id}
+            candidate={c}
+            selected={selectedTextIds.includes(c.candidate_id)}
+            onToggle={onToggle}
+            onSaveEdit={onSaveEdit}
+          />
+        ))}
+      </div>
+    </section>
+  );
+}
+
+// 把平铺候选按 strategy 分组，返回有序 [strategy, candidates][]（A/B/C 固定序，未分套垫底）。
+// 仅含真实存在的套(不硬塞空套),避免某套还没生成出来时显示空壳。
+export function groupByStrategy(
+  candidates: TextCandidate[],
+): Array<[string, TextCandidate[]]> {
+  const order = ['A', 'B', 'C', '_'];
+  const buckets = new Map<string, TextCandidate[]>();
+  for (const c of candidates) {
+    const key = c.strategy ?? '_';
+    if (!buckets.has(key)) buckets.set(key, []);
+    buckets.get(key)!.push(c);
+  }
+  return order
+    .filter((k) => buckets.has(k))
+    .map((k) => [k, buckets.get(k) ?? []] as [string, TextCandidate[]]);
+}

frontend/src/hooks/useSse.ts

@@ -81,6 +81,7 @@ function handleEvent(
       const tc: TextCandidate = {
         candidate_id: event.data.candidate_id,
         angle_label: event.data.angle_label,
+        strategy: event.data.strategy ?? null,
         content: event.data.content,
         source: 'ai',
         score: { title: 0, emotion: 0, selling: 0, keyword: 0, compliance: 0, total: totalScore },

frontend/src/types/dto.tasks.ts

@@ -53,6 +53,7 @@ export interface TextScore {
 export interface TextCandidate {
   candidate_id: number;
   angle_label: string;
+  strategy?: 'A' | 'B' | 'C' | null;   // 三套正交叙事套(A痛点/B场景/C成分),前端按套分组;旧数据为空
   content: string;
   source: 'ai' | 'import';
   score: TextScore;

frontend/src/types/sse.ts

@@ -23,6 +23,7 @@ export interface TextCandidateEvent extends SseBaseEvent {
   data: {
     candidate_id: number;
     angle_label: string;
+    strategy?: 'A' | 'B' | 'C' | null;  // 后端 pipeline_io 推送的正交叙事套标记
     content: string;
     score: number;  // SSE 推总分整数（0-100），完整五维分在 GET /tasks/{id} 返回
   };