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/workers/tasks.py

@@ -106,6 +106,7 @@ def run_generation_pipeline(self, task_id: int, regen_strategy: str | None = Non
             build_clients_and_clear_key,
             build_product_dict,
             load_flywheel_context,
+            load_benchmark_features,
         )
         from app.workers.pipeline_io import run_text_generation, run_image_generation
         from app.core.config import get_settings
@@ -135,6 +136,8 @@ def run_generation_pipeline(self, task_id: int, regen_strategy: str | None = Non
         }, seq)
 
         product_dict = build_product_dict(product)
+        # 第2环爆款配方接进文案链：选中并分析完的标杆 8维配方注入 build_prompt（借方法层结构）
+        product_dict["benchmark_refs"] = load_benchmark_features(db, task, workspace_id)
         flywheel_fragment, flywheel_ctx = load_flywheel_context(db, workspace_id, task.product_id, product_dict)
 
         if flywheel_fragment:
@@ -192,6 +195,7 @@ def run_generation_pipeline(self, task_id: int, regen_strategy: str | None = Non
             first_copy, settings.UPLOAD_BASE_PATH,
             regen_strategy=regen_strategy, regen_role=regen_role,
             custom_prompt=custom_prompt,
+            flywheel_fragment=flywheel_fragment,
         )
 
         # 最终状态 + task_done