various fixes

api/app/tasks/memoir_tasks.py

@@ -181,34 +181,6 @@ def _memoir_image_from_asset(
     )
 
 
-def _select_placeholders_for_effective_max(
-    placeholders: list[dict],
-    existing_images: list[dict] | None,
-    effective_max: int,
-) -> list[dict]:
-    existing_placeholders = {
-        item.get("placeholder")
-        for item in normalize_image_assets(existing_images)
-        if item.get("placeholder")
-    }
-    existing_count_in_content = sum(
-        1 for item in placeholders if item.get("placeholder") in existing_placeholders
-    )
-    remaining_new_slots = max(0, effective_max - existing_count_in_content)
-
-    selected: list[dict] = []
-    for item in placeholders:
-        if item.get("placeholder") in existing_placeholders:
-            selected.append(item)
-            continue
-        if remaining_new_slots <= 0:
-            continue
-        selected.append(item)
-        remaining_new_slots -= 1
-
-    return [{**item, "index": index} for index, item in enumerate(selected)]
-
-
 def _coerce_state(model: MemoirState) -> MemoirStateSchema:
     """将数据库模型转换为 Schema"""
     return MemoirStateSchema.model_validate(