dsh-cursor-settings: Cursor-style settings page and recent input bar for DSH web

`dsh-cursor-settings` is a DSH web plugin maintained by Argonaut790, designed to optimize the DSH interface through the philosophy of "everything is a plugin." The plugin primarily offers two core functions: first, it adds four management modules—Rules, Skills, MCP, and Import—to the DSH settings dialog, supporting the viewing and editing of `AGENTS.md`/`CLAUDE.md` rule files, managing Skills, maintaining MCP server entries (writing to `cordis.patch.yml`, supporting stdio or streamable-http, and real-time status monitoring), and importing Cursor settings; and second, it provides a fixed latest input card at the top of the conversation to help users quickly recall the latest input in long conversations.