清理后端编译警告

删除后端未使用的历史 helper、mapper、handler 和 re-export

将仅测试使用的导入、常量和辅助函数收口到 cfg(test)

补齐 Jump Hop 测试构造体字段并对齐 Match3D 当前素材表测试契约

验证后端 workspace cargo check 与 Match3D、Puzzle 相关测试

server-rs/crates/api-server/src/puzzle/mappers.rs

@@ -396,49 +396,6 @@ pub(super) fn map_puzzle_work_summary_response(
     }
 }
 
-pub(super) fn map_puzzle_gallery_card_response(
-    state: &PuzzleApiState,
-    item: PuzzleGalleryCardRecord,
-) -> PuzzleWorkSummaryResponse {
-    let author = resolve_puzzle_work_author_by_user_id(
-        state,
-        &item.owner_user_id,
-        Some(&item.author_display_name),
-        None,
-    );
-    PuzzleWorkSummaryResponse {
-        work_id: item.work_id,
-        profile_id: item.profile_id,
-        owner_user_id: item.owner_user_id,
-        source_session_id: item.source_session_id,
-        author_display_name: author.display_name,
-        work_title: item.work_title,
-        work_description: item.work_description,
-        level_name: item.level_name,
-        summary: item.summary,
-        theme_tags: item.theme_tags,
-        cover_image_src: item.cover_image_src,
-        cover_asset_id: item.cover_asset_id,
-        publication_status: item.publication_status,
-        updated_at: item.updated_at,
-        published_at: item.published_at,
-        play_count: item.play_count,
-        remix_count: item.remix_count,
-        like_count: item.like_count,
-        recent_play_count_7d: item.recent_play_count_7d,
-        point_incentive_total_half_points: item.point_incentive_total_half_points,
-        point_incentive_claimed_points: item.point_incentive_claimed_points,
-        point_incentive_total_points: item.point_incentive_total_half_points as f64 / 2.0,
-        point_incentive_claimable_points: item
-            .point_incentive_total_half_points
-            .saturating_div(2)
-            .saturating_sub(item.point_incentive_claimed_points),
-        publish_ready: item.publish_ready,
-        generation_status: item.generation_status,
-        levels: Vec::new(),
-    }
-}
-
 pub(super) fn map_public_work_puzzle_gallery_card_response(
     state: &PuzzleApiState,
     item: spacetime_client::PublicWorkGalleryEntryRecord,