Terminal-style input history for the DeepSeek Harness web composer: edge-first arrows with exact draft/caret restore, browser-local persisted history, Ctrl+R reverse search, workspace recall - and sliding-context awareness (compaction summaries in recall/search, compaction notice with one-click /compact fill).
Steam Workshop style plugin store for DeepSeek Harness Web UI: browse 850+ community plugins, one-click install with GitHub mirror acceleration, progress UI, security checks, Chinese descriptions