A8多套打包+M4归档+R5多图:存量功能备份

A8 多套交付包(packaging_task.py):
- 修复交付包只打第1条混乱note的bug,按ImageCandidate.strategy分A/B/C组
- 每组生独立note_0N夹(6图+文案.txt),同seq留最新去重,老数据兼容
- task74端到端验:3套各6图,独立agent7项交叉验证全过

M4 归档(tasks.py/exports.py/前端):
- list_tasks加date_from/date_to/product_id筛选+product_name批量填(防N+1)
- 新增exports.py:产品JSON导出+标杆CSV导出(UTF-8 BOM)
- 前端HistoryFilters日期/产品筛选+产品列+打回原因红banner
- response.py加raise_param_error;独立agent验A1/A2/A9通过

R5 产品多图(product_images.py/020迁移/前端):
- product_images表+5端点(上传/列/改场景/设主图/删图)
- 生图按ROLE_SCENE_PREFERENCE选对应场景图,回落primary
- 前端ProductImageManager多图画廊

R6 账号config拆页(settings/):
- 配置页按角色拆/settings(运营+组长+admin)+/config(仅admin)
- Key只显末4位不显余额(守红线)

核销表对齐真实代码状态:D1改稿框/M7裂变/E12评图分纠偏为已完成(曾漏回写)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

backend/app/api/v1/task_actions.py

@@ -58,7 +58,9 @@ def select_image(
     db: Session = Depends(get_db),
 ):
     """选图（飞轮信号 image_select +3）。"""
+    import json
     from app.services.flywheel_service import record_signal
+    from app.constants.enums import IMAGE_STRATEGY_ANGLE
     task = _check_task_ownership(
         db.query(GenerationTask).filter(GenerationTask.id == task_id).first(),
         current_user.workspace_id,
@@ -70,7 +72,14 @@ def select_image(
         raise_not_found("图片候选不存在")
     ic.is_selected = True
     db.commit()
-    record_signal(db, current_user, task, "image_select", candidate_id=ic.id)
+    # R7 断点2：选图带 strategy → 映射叙事角度标签进飞轮，与文案 angle_label 并轨；
+    # strategy 原值另存 signal_meta，便于后续按套别复盘。angle_label=None 不再空转。
+    angle = IMAGE_STRATEGY_ANGLE.get(ic.strategy or "")
+    meta = json.dumps({"strategy": ic.strategy, "role": ic.role}, ensure_ascii=False) if ic.strategy else None
+    record_signal(
+        db, current_user, task, "image_select",
+        candidate_id=ic.id, angle_label=angle, signal_meta=meta,
+    )
     return ok({"selected": body.candidate_id})
 
 
@@ -159,7 +168,14 @@ def get_preference_context(
         current_user.workspace_id,
     )
     from app.services.flywheel_service import get_preference_context
-    ctx = get_preference_context(db, current_user.workspace_id, task.product_id)
+    # 取产品档案供冷启动基线（与生产链同口径）
+    from app.models.product import Product
+    _p = db.query(Product).filter(Product.id == task.product_id).first()
+    product_dict = {
+        "custom_prompt": getattr(_p, "custom_prompt", "") or "",
+        "style_tone": getattr(_p, "style_tone", "") or "",
+    } if _p else {}
+    ctx = get_preference_context(db, current_user.workspace_id, task.product_id, product_dict)
     return ok(ctx)