DeepSeek Harness chat history and session management: search archives, restore conversations, and delete safely

Local-first A-share research workbench for DeepSeek Harness: market dashboards, watchlists, valuation, four investor agents, versioned reports, and continuous post-report chat.

DSH web plugin for the composer: shell-style prompt history (Up/Down with prefix search, Ctrl+R reverse search), Codex-style history completion and next-prompt prediction ghosted in the empty input (Tab or → to accept), a selection toolbar (copy / quote /

Turn any DSH selection into a reviewable quote — comment / add to chat / side chat, source highlights and jump-back, a searchable review list, side threads, revisions, and per-quote reply badges.