dsh-noteboard: A Workspace-Level Sticky Note Canvas Plugin for DeepSeek Harness

The `dsh-noteboard` plugin in DeepSeek Harness addresses the challenge of fragmented and hard-to-manage conversation records through an infinite canvas and Markdown notes. It supports collecting and distilling content from conversations into structured notes, and allows users to drag notes back into the input box to reference them for AI processing. Additionally, the plugin provides 12 model tools and 5 workflows for automated organization, search, and manipulation of note data. By integrating conversational flow with knowledge management, it is well suited for long-term project development and debugging.