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/services/fission_image_retry.py

@@ -60,6 +60,19 @@ def retry_fission_note_images(
         except Exception as e:  # noqa: BLE001
             logger.warning("裂变补图参考图读取失败，无参考图模式: %s", e)
 
+    # R5多图：补图也按场景分组，重生失败分镜时选对应场景图
+    images_by_scene: dict[str, list[bytes]] = {}
+    for _im in (product.get("images") or []):
+        _p = _resolve_image_path(_im.get("path", ""))
+        if _p and os.path.isfile(_p):
+            try:
+                with open(_p, "rb") as _f:
+                    images_by_scene.setdefault(_im.get("scene") or "primary", []).append(_f.read())
+            except Exception:  # noqa: BLE001
+                pass
+    if reference_images and not images_by_scene.get("primary"):
+        images_by_scene.setdefault("primary", []).extend(reference_images)
+
     upload_base = get_settings().UPLOAD_ABS_ROOT
     img_dir = os.path.join(upload_base, str(ft.workspace_id), f"fission_{ft.id}", str(fn.seq))
     os.makedirs(img_dir, exist_ok=True)
@@ -73,6 +86,7 @@ def retry_fission_note_images(
                 client=clients, note=note, product=product,
                 image_count=image_count, reference_images=reference_images,
                 target_role=role,
+                images_by_scene=images_by_scene or None,
             ))
         except Exception as exc:  # noqa: BLE001
             logger.error("裂变补图 seq=%s role=%s 仍失败: %s", fn.seq, role, exc)