清理角色动作持久化映射冗余

通用 JSON 解析辅助函数改用准确命名并与 active mapper 保持一致。

持久化序列帧时直接消费输入字段，避免深拷贝完整帧数组。

server-rs/crates/api-server/src/editor_project.rs

@@ -6708,14 +6708,14 @@ fn fill_missing_media_identity_field(
 
 pub(crate) async fn persist_editor_generated_asset(
     state: &AppState,
-    input: PersistEditorGeneratedAssetInput,
+    mut input: PersistEditorGeneratedAssetInput,
 ) -> Result<EditorGeneratedAssetRecord, AppError> {
     let generation_inputs_json = serialize_editor_generation_inputs(
         input.asset_kind.as_deref(),
         input.generation_inputs.clone(),
     )?;
     let image_sequence_frames_json =
-        serialize_editor_image_sequence_frames(input.image_sequence_frames.clone())?;
+        serialize_editor_image_sequence_frames(input.image_sequence_frames.take())?;
     let object_key = normalize_editor_object_key(input.object_key);
     let asset_object_id = normalize_optional_string(input.asset_object_id);
     let image_src = normalize_editor_persisted_media_src(input.image_src, object_key.as_deref())?;