商品标题/规格 -> 商品标题 (drop the spec subtitle, already shown in the 独立 规格数据 column). 认领时间 -> 上架时间 in the list. The detail drawer still says 认领时间, unchanged per the request scope. Also locks in existing sync behavior with a regression test: a resync of the same package must overwrite claim_time and destroy_dead_line, not just last_synced_at (server/.../sync.go already did this; the test only adds coverage). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NTDbDcwbDw1TSAcE6wfh2F